CN118669470B - Speed reducer and speed reducer backstop - Google Patents
Speed reducer and speed reducer backstop Download PDFInfo
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- CN118669470B CN118669470B CN202411172840.6A CN202411172840A CN118669470B CN 118669470 B CN118669470 B CN 118669470B CN 202411172840 A CN202411172840 A CN 202411172840A CN 118669470 B CN118669470 B CN 118669470B
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 47
- 238000001125 extrusion Methods 0.000 claims description 30
- 230000000670 limiting effect Effects 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 abstract description 11
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 108090000565 Capsid Proteins Proteins 0.000 description 6
- 230000002441 reversible effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Abstract
The invention belongs to the technical field of a backstop, in particular to a speed reducer and a speed reducer backstop, which comprise a front shell and a rear shell, wherein the front shell and the rear shell are both in a circular ring shape, the same annular cavity is formed in one side, opposite to the rear shell, of the front shell, the same fixing base is arranged at the bottoms of the front shell and the rear shell, and the same connecting sleeve is rotatably arranged on the inner sides of the front shell and the rear shell. When the conical stop block deflects outwards the deflection groove through the fixed shaft under the action of the reset spring, the one-way gear can roll along the teeth of the second arc-shaped groove, so that the fixed shaft can drive the conical stop block to rotate under the action of the teeth to the one-way gear, the purpose of changing the contact position of the conical stop block and a subsequent inclined plane shifting block is achieved, the conical surface of the conical stop block can be in more uniform contact with a plurality of inclined plane shifting blocks, and the service life of the conical stop block is prolonged.
Description
Technical Field
The invention belongs to the technical field of a backstop, and particularly relates to a speed reducer and a speed reducer backstop.
Background
The speed reducer backstop is an important component part of the speed reducer, and is mainly used for controlling the steering of the speed reducer and preventing equipment damage caused by the action of external factors, such as instantaneous shutdown, instantaneous reverse rotation and the like. The principle of the speed reducer backstop is that the backstop is combined with a release mechanism through a brake to realize reverse limitation.
The existing speed reducer backstop mainly realizes the reverse restriction of the output shaft of the speed reducer through the blocking effect between the inclined plane shifting block and the stop block in the backstop. But in the forward rotation process of the speed reducer, the inclined plane shifting block can continuously squeeze and rub the same place of the stop block, so that the stop block is easily worn, and the limiting effect of the stop block on the inclined plane shifting block is further affected.
Disclosure of Invention
In view of the above, the present invention provides a speed reducer and a speed reducer backstop, so as to solve the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a speed reducer and speed reducer backstop, includes procapsid and back casing, procapsid and back casing are the ring form, and the same annular chamber has all been seted up to the opposite one side of procapsid and back casing, same unable adjustment base is installed to the bottom of procapsid and back casing, the same adapter sleeve is installed in the inboard rotation of procapsid and back casing, the spread groove has been seted up to the axial on the inside wall of adapter sleeve, annular mounting groove has been seted up in the outside of adapter sleeve, install the swivel in the mounting groove, the outside fixedly connected with a plurality of inclined plane shifting blocks of swivel, and a plurality of inclined plane shifting blocks are annular distribution, the inboard of swivel is provided with buffer unit, a plurality of deflection grooves have been seted up on the annular chamber inner wall of the opposite one side of procapsid and back casing, a plurality of deflection grooves are annular distribution, and the one side that the deflection groove is close to the adapter sleeve is the open design, are provided with same locking component in two relative deflection grooves.
Further, the buffer assembly comprises a plurality of extrusion blocks, the extrusion blocks are annularly distributed on the inner side of the swivel, the extrusion blocks are fixedly connected with the swivel, the installation grooves are formed in the positions, opposite to the extrusion blocks, of the installation grooves, the extrusion blocks are slidably mounted in the grooves, two arc rods are symmetrically and slidably inserted on the extrusion blocks, two ends of each arc rod are fixedly connected with two side inner walls of the grooves respectively, the circle centers of the arc rods coincide with the circle centers of the swivel, the arc rods are sleeved with buffer springs, the buffer springs are located on the opposite sides of the extrusion blocks when the extrusion blocks positively rotate, two ends of each buffer spring are fixedly connected with groove walls of one side, corresponding to the extrusion blocks and the grooves, of each buffer spring, of each groove is fixedly connected with a positioning block, and each positioning block is located between the two arc rods.
Further, the locking component comprises a conical stop block, the conical surface of the conical stop block is opposite to the inclined surface when the inclined surface shifting block rotates forwards, a fixed shaft is vertically and fixedly inserted in the axis of the conical stop block, one end of the fixed shaft, which is close to the inclined surface of the conical stop block, is rotationally connected with the fixed block, a rotating shaft is fixedly inserted between the front side and the rear side of the fixed block, two ends of the rotating shaft are respectively rotationally connected with two opposite deflection groove walls, the other end of the fixed shaft is rotationally sleeved with a limiting block, a first arc groove is formed in the position, which is opposite to the limiting block, of the annular cavity, the center of the first arc groove coincides with the axis of the rotating shaft, the limiting block is slidably mounted in the first arc groove, one side, which is far away from the connecting sleeve, of the limiting block is fixedly connected with a reset spring, the other end of the reset spring is fixedly connected with the groove wall of the corresponding side of the first arc groove, a part of the fixed shaft, which is positioned between the limiting block and the conical stop block, is fixedly sleeved with a one-way gear, a second arc groove which is concentric with the first arc groove is formed in the position, which is opposite to the annular cavity, and teeth can be meshed with the teeth uniformly distributed on the second arc groove of the rear shell.
Further, the conical surface of the conical stop block is rotationally sleeved with a movable ring, a plurality of balls are annularly and uniformly distributed on the surface of the movable ring, a plurality of strip-shaped grooves are obliquely distributed on the inclined plane shifting block and are mutually parallel, the distance between two adjacent strip-shaped grooves is matched with the distance between two adjacent balls, and the width of each strip-shaped groove is matched with the diameter of each ball.
Further, the front shell and the rear shell are connected together through a plurality of screws, and the screws are uniformly distributed in a ring shape.
Further, one side of the front shell opposite to the rear shell is fixedly connected with an annular bulge concentric with the front shell, the annular bulge is close to the edge of the front shell, an annular sealing groove is formed in the position of the rear shell opposite to the annular bulge, and the sealing groove is matched with the annular bulge.
Further, the unidirectional gear can be always meshed with the teeth, and when the conical stop block deflects into the deflection groove, the unidirectional gear is in an idle state.
Furthermore, the conical surface width of the conical stop block is matched with the inclined surface width of the inclined surface shifting block, and the conical stop block can completely enter the deflection groove under the extrusion of the inclined surface shifting block.
The invention also provides a speed reducer comprising any one of the above.
The invention has the technical effects and advantages that:
1. When the conical stop block deflects to the outside of the deflection groove through the fixed shaft under the action of the reset spring, the unidirectional gear can roll along the teeth of the second arc groove, so that the fixed shaft can drive the conical stop block to rotate under the action of the teeth on the unidirectional gear, the purpose of changing the contact position of the conical stop block and a subsequent inclined plane shifting block is achieved, the conical surface of the conical stop block can be more uniformly contacted with a plurality of inclined plane shifting blocks, and the service life of the conical stop block is prolonged;
2. according to the invention, the buffer assembly is arranged, when the output shaft of the speed reducer drives the connecting sleeve to reversely rotate, the buffer spring can convert kinetic energy generated when the inclined plane shifting block collides with the conical stop block into elastic potential energy of the buffer spring, so that collision force between the inclined plane shifting block and the conical stop block is reduced, and deformation of the inclined plane shifting block or the conical stop block due to overlarge collision force is avoided;
3. according to the invention, the movable ring is arranged, when the inclined plane shifting block is driven by the connecting sleeve to contact with the conical surface of the conical stop block, the strip-shaped groove on the inclined plane shifting block can be clamped with the ball on the movable ring, and as the strip-shaped groove is in an inclined state, the inclined plane shifting block can push the ball through the strip-shaped groove along with the movement of the inclined plane shifting block, so that the movable ring is driven to rotate, the sliding friction force between the inclined plane shifting block and the conical stop block is converted into rolling friction between the conical stop block and the rotating ring, the friction force between the conical stop block and the inclined plane shifting block is reduced, and the service life of the conical stop block is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a perspective view of the rear housing, connection sleeve, swivel and locking assembly of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic perspective view of the front housing of the present invention;
FIG. 5 is a schematic perspective view of a connecting sleeve, swivel and bevel block of the present invention;
FIG. 6 is a partial cross-sectional view of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic perspective view of a connecting sleeve and buffer assembly of the present invention;
FIG. 8 is a schematic perspective view of a swivel, a bevel shift block and a squeeze block of the present invention.
In the figure: 1. a front housing; 2. a rear housing; 3. an annular cavity; 4. a fixed base; 5. connecting sleeves; 6. a connecting groove; 7. a swivel; 8. an inclined plane shifting block; 9. a buffer assembly; 91. extruding a block; 92. a groove; 93. an arc-shaped rod; 94. a buffer spring; 95. a positioning block; 10. a deflection tank; 11. a locking assembly; 111. a conical stop; 112. a fixed shaft; 113. a fixed block; 114. a rotating shaft; 115. a limiting block; 116. a first arc-shaped groove; 117. a return spring; 118. a one-way gear; 119. a second arc-shaped groove; 120. teeth; 12. a movable ring; 13. a ball; 14. a bar-shaped groove; 15. a screw; 16. an annular protrusion; 17. and (5) sealing the groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
The invention provides a speed reducer and a speed reducer backstop as shown in figures 1 to 8, which comprises a front shell 1 and a rear shell 2, wherein the front shell 1 and the rear shell 2 are annular, the opposite sides of the front shell 1 and the rear shell 2 are provided with identical annular cavities 3, the bottoms of the front shell 1 and the rear shell 2 are provided with identical fixed bases 4, the inner sides of the front shell 1 and the rear shell 2 are rotatably provided with identical connecting sleeves 5, the inner side walls of the connecting sleeves 5 are axially provided with connecting grooves 6, the outer sides of the connecting sleeves 5 are provided with annular mounting grooves, rotating rings 7 are arranged in the mounting grooves, the outer sides of the rotating rings 7 are fixedly connected with a plurality of inclined plane shifting blocks 8, the inclined plane shifting blocks 8 are distributed in an annular shape, the inner sides of the rotating rings 7 are provided with buffer components 9, the inner walls of the annular cavities 3 on the opposite sides of the front shell 1 and the rear shell 2 are provided with a plurality of deflection grooves 10 which are distributed in an annular shape, one side of the deflection grooves 10 close to the connecting sleeves 5 is provided with openings, the two deflection grooves 10 which are designed to be opposite to each other, and the two screw rods 15 are uniformly distributed in the front shell 1 and are connected with the screw rods 15;
When the connecting sleeve 5 of the backstop is sleeved on an output shaft of the speed reducer in use, and then the connecting sleeve 5 is spliced with a connecting block reserved on the output shaft of the speed reducer through a connecting groove 6 in the connecting sleeve 5, so that the connecting operation of the connecting sleeve 5 and the output shaft of the speed reducer is realized, and finally the backstop is fixed through a fixed base 4;
In the use process, when the output shaft of the speed reducer rotates positively, the output shaft of the speed reducer can drive the connecting sleeve 5 and the swivel 7 to rotate together, and along with the rotation of the swivel 7, a plurality of inclined plane shifting blocks 8 on the swivel 7 can squeeze the locking components 11 in the corresponding deflection grooves 10, so that the locking components 11 can deflect into the deflection grooves 10, and when the locking components 11 rotate out of the deflection grooves 10 again, the locking components 11 can automatically change the contact positions with the inclined plane shifting blocks 8, so that the whole locking components 11 can contact with the inclined plane shifting blocks 8 more uniformly, and the service life of the locking components 11 is prolonged;
and when the output shaft of speed reducer reverse rotation, the inclined plane shifting block 8 on the swivel 7 can contact with locking component 11 from the opposite direction, and locking component 11 then can cooperate inclined plane shifting block 8 to lock adapter sleeve 5 and the output shaft of speed reducer, avoid the speed reducer to reverse, and because the existence of buffer assembly 9, when inclined plane shifting block 8 contacts with locking component 11 from the opposite direction, buffer assembly 9 can reduce the impact between inclined plane shifting block 8 and the locking component 11, thereby play the guard action to locking component 11 and inclined plane shifting block 8, and then avoid locking component 11 and inclined plane shifting block 8 to damage because of the impact is too big.
As shown in fig. 6 to 8, the buffer assembly 9 includes a plurality of extrusion blocks 91, a plurality of extrusion blocks 91 are annularly distributed on the inner side of the swivel 7, the extrusion blocks 91 are fixedly connected with the swivel 7, a cambered surface groove 92 is formed at the opposite position of the mounting groove and the extrusion blocks 91, the extrusion blocks 91 are slidably mounted in the groove 92, two arc rods 93 are symmetrically and slidably inserted through the extrusion blocks 91, two ends of each arc rod 93 are respectively fixedly connected with two side inner walls of the groove 92, the circle center of each arc rod 93 coincides with the circle center of the swivel 7, a buffer spring 94 is sleeved on each arc rod 93, the buffer spring 94 is located on the opposite side of the extrusion block 91 when the extrusion blocks 91 rotate positively, two ends of the buffer spring 94 are respectively fixedly connected with one side groove wall of the extrusion block 91 corresponding to the groove 92, one side of the groove 92 connected with the buffer spring 94 is fixedly connected with a positioning block 95, and the positioning block 95 is located between the two arc rods 93;
When the output shaft of the speed reducer drives the connecting sleeve 5 to rotate positively, the connecting sleeve 5 can push the extrusion block 91 and the rotating ring 7 to rotate normally through the inner wall of the groove 92, and when the output shaft of the speed reducer drives the connecting sleeve 5 to rotate reversely under the action of external force, firstly, the connecting sleeve 5 can be connected with the rotating ring 7 into a whole under the action force of the buffer spring 94, so that along with the reverse rotation of the connecting sleeve 5, the inclined plane shifting block 8 on the rotating ring 7 can be contacted with the plane of the conical stop block 111 from the opposite direction, when the inclined plane shifting block 8 is limited by the plane of the conical stop block 111, the rotating ring 7 can stop rotating, but the output shaft of the speed reducer can continuously drive the connecting sleeve 5 to rotate under the action of inertia, at the moment, the connecting sleeve 5 can gradually squeeze the buffer spring 94 through the inner wall of the side, which is close to the buffer spring 94, so that the buffer spring 94 is gradually compressed, and along with the compression of the buffer spring 94, the kinetic energy of the output shaft of the speed reducer can be gradually converted into the elastic potential energy of the buffer spring 94, so that the collision force between the inclined plane shifting block 8 and the conical stop block 111 can be contacted with the plane of the conical stop block 111 from the opposite direction, and the inclined plane shifting block 8 can be prevented, and the buffer block 95 can be completely compressed along with the buffer spring 94, and the buffer spring 95 can be completely stopped from rotating.
As shown in fig. 2 and 3, the locking assembly 11 includes a tapered stop block 111, the tapered surface of the tapered stop block 111 is opposite to the inclined surface of the inclined plane shifting block 8 when rotating forward, a fixed shaft 112 is vertically and fixedly inserted in the axial center of the tapered stop block 111, one end of the fixed shaft 112 close to the inclined surface of the tapered stop block 111 is rotatably connected with a fixed block 113, a rotating shaft 114 is fixedly inserted between the front side and the rear side of the fixed block 113, two ends of the rotating shaft 114 are respectively and rotatably connected with two opposite deflection grooves 10 groove walls, the other end of the fixed shaft 112 is rotatably sleeved with a limiting block 115, a first arc groove 116 is formed in a position of the annular cavity 3 opposite to the limiting block 115, the center of the first arc groove 116 coincides with the axial center of the rotating shaft 114, the limiting block 115 is slidably mounted in the first arc groove 116, one side of the limiting block 115 away from the connecting sleeve 5 is fixedly connected with a reset spring 117, the other end of the return spring 117 is fixedly connected with the groove wall on the corresponding side of the first arc groove 116, a unidirectional gear 118 is fixedly sleeved on the part of the fixed shaft 112 between the limiting block 115 and the conical stop block 111, a second arc groove 119 concentric with the first arc groove 116 is formed in the position, opposite to the unidirectional gear 118, of the annular cavity 3, teeth 120 are uniformly distributed on the second arc groove 119 of the rear shell 2 and can be meshed with the unidirectional gear 118, the unidirectional gear 118 can be always meshed with the teeth 120, when the conical stop block 111 deflects into the deflection groove 10, the unidirectional gear 118 is in an idle state, the conical surface width of the conical stop block 111 is matched with the inclined surface width of the inclined surface shifting block 8, and the conical stop block 111 can completely enter the deflection groove 10 under the extrusion of the inclined surface shifting block 8;
When the inclined plane shifting block 8 is in contact with the conical surface of the conical stop block 111 under the drive of the connecting sleeve 5, the inclined plane shifting block 8 can press the conical surface of the conical stop block 111 through the inclined plane of the inclined plane shifting block 8 along with the continuous movement of the inclined plane shifting block 8, so that the conical stop block 111 can drive the fixed shaft 112 to gradually deflect into the deflection groove 10 by taking the rotating shaft 114 as the circle center, in the process, the limiting block 115 can slide along the first arc-shaped groove 116 and press the reset spring 117 under the drive of the fixed shaft 112, the unidirectional gear 118 can keep idle running, the conical stop block 111 can be continuously pressed along with the inclined plane shifting block 8, when the conical stop block 111 completely enters into the deflection groove 10, the conical stop block 111 can be separated from the inclined plane shifting block 8 along with the continuous movement of the inclined plane shifting block 8, then the conical stop block 111 can be driven by the fixed shaft 112 to deflect outwards of the deflection groove 10 under the action of the reset spring 117, in the process, the unidirectional gear 118 can roll along with the teeth 120 of the second arc-shaped groove 119, so that the fixed shaft 112 can drive the conical stop block 111 to rotate under the action of the unidirectional gear 118, and further the conical stop block 111 can be more uniformly contacted with the conical stop block 111 along with the inclined plane shifting block 8, and the service life of the inclined plane shifting block 8 can be further prolonged;
In the use process, when the output shaft of the speed reducer drives the connecting sleeve 5 to reversely rotate, the inclined plane shifting block 8 can reversely contact with the plane of the conical stop block 111, and at the moment, the plane of the conical stop block 111 can play a limiting role on the inclined plane shifting block 8, so that the output shaft of the speed reducer is prevented from reversely rotating.
As shown in fig. 2 to 8, the conical surface of the conical stop block 111 is rotatably sleeved with a movable ring 12, a plurality of balls 13 are annularly and uniformly distributed on the surface of the movable ring 12, a plurality of bar grooves 14 are obliquely distributed on the inclined dial block 8, the bar grooves 14 are parallel to each other, the distance between two adjacent bar grooves 14 is matched with the distance between two adjacent balls 13, and the width of the bar grooves 14 is matched with the diameter of the balls 13;
through being provided with the expansion ring 12, when the inclined plane shifting block 8 is in contact with the conical surface of the conical dog 111 under the drive of adapter sleeve 5, the bar groove 14 on the inclined plane shifting block 8 can be in a clamping together with the ball 13 on the expansion ring 12, because bar groove 14 is the incline state, consequently, along with the removal of inclined plane shifting block 8, inclined plane shifting block 8 can promote ball 13 through bar groove 14 to drive the expansion ring 12 and rotate, thereby change the sliding friction between inclined plane shifting block 8 and the conical dog 111 into the rolling friction between conical dog 111 and the swivel 7, advance the frictional force that reduces between conical dog 111 and the inclined plane shifting block 8, the life of conical dog 111 is prolonged.
As shown in fig. 2 to 4, an annular protrusion 16 concentric with the front housing 1 is fixedly connected to the opposite side of the front housing 1 to the rear housing 2, the annular protrusion 16 is close to the edge of the front housing 1, an annular sealing groove 17 is formed at the opposite position of the rear housing 2 to the annular protrusion 16, and the sealing groove 17 is matched with the annular protrusion 16;
by being provided with the annular protrusion 16 and the seal groove 17, when the front housing 1 and the rear housing 2 are connected together by the screw 15, the annular protrusion 16 on the front housing 1 can be inserted into the seal groove 17 on the rear housing 2, thereby improving the tightness and the sealing property of the connection between the front housing 1 and the rear housing 2.
The invention also provides a speed reducer comprising any one of the above.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (8)
1. The utility model provides a speed reducer backstop, includes preceding casing (1) and rear housing (2), its characterized in that: the front shell (1) and the rear shell (2) are both in a circular ring shape, one side of the front shell (1) opposite to the rear shell (2) is provided with the same annular cavity (3), the bottom of the front shell (1) and the bottom of the rear shell (2) are provided with the same fixed base (4), the inner sides of the front shell (1) and the rear shell (2) are rotatably provided with the same connecting sleeve (5), the inner side of the connecting sleeve (5) is axially provided with a connecting groove (6), the outer side of the connecting sleeve (5) is provided with an annular mounting groove, a swivel (7) is arranged in the mounting groove, the outer side of the swivel (7) is fixedly connected with a plurality of inclined plane shifting blocks (8), the inclined plane shifting blocks (8) are distributed in a ring shape, the inner side of the swivel (7) is provided with a buffer assembly (9), the inner wall of the annular cavity (3) on the opposite side of the front shell (1) and the rear shell (2) is provided with a plurality of deflection grooves (10), the deflection grooves (10) are distributed in a ring shape, and the two deflection grooves (10) are designed to be close to one side of the connecting sleeve (11) and are opposite to each other;
The locking component (11) comprises a conical stop block (111), the conical surface of the conical stop block (111) is opposite to the inclined surface of the inclined surface shifting block (8) in forward rotation, a fixed shaft (112) is vertically and fixedly inserted in the axial center of the conical stop block (111), one end of the fixed shaft (112) close to the inclined surface of the conical stop block (111) is rotationally connected with a fixed block (113), a rotating shaft (114) is fixedly inserted between the front side and the rear side of the fixed block (113), two ends of the rotating shaft (114) are respectively and rotationally connected with the groove walls of two opposite deflection grooves (10), a limiting block (115) is rotationally sleeved at the other end of the fixed shaft (112), a first arc-shaped groove (116) is formed in the position of the annular cavity (3) opposite to the limiting block (115), the center of the first arc-shaped groove (116) coincides with the axial center of the rotating shaft (114), the limiting block (115) is slidably arranged in the first arc-shaped groove (116), one side of the limiting block (115) away from the connecting sleeve (5) is fixedly connected with a reset spring (117), the other end of the reset spring (117) is rotationally connected with the corresponding one side of the first arc-shaped groove (116) and is fixedly connected with the corresponding one side of the fixed gear (112), the annular cavity (3) is provided with a second arc-shaped groove (119) concentric with the first arc-shaped groove (116) at the position opposite to the unidirectional gear (118), teeth (120) are uniformly distributed on the second arc-shaped groove (119) of the rear shell (2), and the teeth (120) can be meshed with the unidirectional gear (118).
2. The speed reducer backstop of claim 1, wherein: the buffer component (9) comprises a plurality of extrusion blocks (91), wherein the extrusion blocks (91) are annularly distributed on the inner side of the swivel (7), the extrusion blocks (91) are fixedly connected with the swivel (7), a cambered surface groove (92) is formed in the opposite position of each mounting groove and each extrusion block (91), the extrusion blocks (91) are slidably mounted in the groove (92), two arc rods (93) are symmetrically and slidably inserted on the extrusion blocks (91), two ends of each arc rod (93) are fixedly connected with two side inner walls of the corresponding groove (92), the circle centers of the arc rods (93) are overlapped with the circle centers of the swivel (7), buffer springs (94) are sleeved on the arc rods (93), the buffer springs (94) are located on the opposite sides of the extrusion blocks (91) in positive rotation, two ends of each buffer spring (94) are fixedly connected with one side groove wall of the corresponding extrusion block (91) and one side groove wall of each groove (92), and one side fixedly connected with each buffer positioning block (95) is located between the two arc rods (93).
3. The speed reducer backstop of claim 1, wherein: the conical surface of the conical stop block (111) is rotationally sleeved with a movable ring (12), a plurality of balls (13) are annularly and uniformly distributed on the surface of the movable ring (12), a plurality of strip-shaped grooves (14) are obliquely distributed on the inclined plane shifting block (8), the strip-shaped grooves (14) are mutually parallel, the distance between every two adjacent strip-shaped grooves (14) is matched with the distance between every two adjacent balls (13), and the width of each strip-shaped groove (14) is matched with the diameter of each ball (13).
4. The speed reducer backstop of claim 1, wherein: the front shell (1) and the rear shell (2) are connected together through a plurality of screws (15), and the screws (15) are uniformly distributed in a ring shape.
5. The speed reducer backstop of claim 4, wherein: the front shell (1) and the rear shell (2) are fixedly connected with annular protrusions (16) concentric with the front shell (1), the annular protrusions (16) are close to the edge of the front shell (1), annular sealing grooves (17) are formed in the positions, opposite to the annular protrusions (16), of the rear shell (2), and the sealing grooves (17) are matched with the annular protrusions (16).
6. A speed reducer backstop according to claim 3, wherein: the unidirectional gear (118) can be always meshed with the teeth (120), and when the conical stop block (111) deflects into the deflection groove (10), the unidirectional gear (118) is in an idle state.
7. The speed reducer backstop of claim 6, wherein: the conical surface width of the conical stop block (111) is matched with the inclined surface width of the inclined surface shifting block (8), and the conical stop block (111) can completely enter the deflection groove (10) under the extrusion of the inclined surface shifting block (8).
8. A speed reducer comprising the speed reducer backstop according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411172840.6A CN118669470B (en) | 2024-08-26 | 2024-08-26 | Speed reducer and speed reducer backstop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411172840.6A CN118669470B (en) | 2024-08-26 | 2024-08-26 | Speed reducer and speed reducer backstop |
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| Publication Number | Publication Date |
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| CN118669470A CN118669470A (en) | 2024-09-20 |
| CN118669470B true CN118669470B (en) | 2024-11-01 |
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| CN220505637U (en) * | 2023-08-22 | 2024-02-20 | 浙江铭枫机械制造有限公司 | Backstop with buffer function |
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| US4877113A (en) * | 1988-04-19 | 1989-10-31 | Allied-Signal Inc. | One-way clutch preventing back drive of reversible motor |
| ATE312301T1 (en) * | 2002-04-26 | 2005-12-15 | Estop Gmbh | MOTOR VEHICLE BRAKE SYSTEM WITH PARKING BRAKE FUNCTION AND ELECTROMECHANICAL WHEEL BRAKE FOR SUCH A MOTOR VEHICLE BRAKE SYSTEM |
| CN108061112A (en) * | 2018-02-01 | 2018-05-22 | 安徽理工大学 | A kind of speed limit holdback |
| CN217731651U (en) * | 2022-03-18 | 2022-11-04 | 常州市天牛传动设备有限公司 | Transmission connecting device of backstop |
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2024
- 2024-08-26 CN CN202411172840.6A patent/CN118669470B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345690A (en) * | 2010-07-22 | 2012-02-08 | 杨泰和 | Centrifugal force cutting off sliding damping type torque actuated clutch |
| CN220505637U (en) * | 2023-08-22 | 2024-02-20 | 浙江铭枫机械制造有限公司 | Backstop with buffer function |
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| CN118669470A (en) | 2024-09-20 |
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