CN214221931U

CN214221931U - Gear rack meshing auxiliary mechanism

Info

Publication number: CN214221931U
Application number: CN202021079465.8U
Authority: CN
Inventors: 陈斌
Original assignee: Discovery Transmission Technology Wuxi Co ltd
Current assignee: Discovery Transmission Technology Wuxi Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-09-17
Anticipated expiration: 2030-06-12

Abstract

The utility model belongs to the technical field of rack and pinion meshing, especially, rack and pinion meshing complementary unit, including first installation piece, the mounting groove has been seted up at the top of first installation piece, and slidable mounting has same mounting panel on the inner wall of mounting groove both sides, the bottom fixed mounting of mounting panel has the fixed block, and one side of fixed block is rotated the one end of installing two connecting rods, and fixed mounting has two dead levers on the bottom inner wall of mounting groove, and the through-hole has all been seted up on the horizontal direction in one side of two dead levers, and movable mounting has same round bar between two through-holes, cup jointed two solid fixed rings on the round bar, gu fixed ring all is located between two dead levers and the diameter that is greater than the through-hole between the fixed ring, the other end of two connecting rods rotates respectively and installs on one side of two solid fixed rings. The utility model discloses simple structure, convenient to use, be convenient for to gear and rack meshing process, strengthen meshed stability.

Description

Gear rack meshing auxiliary mechanism

Technical Field

The utility model relates to a rack and pinion meshing technical field especially relates to a rack and pinion meshing complementary unit.

Background

The rack and pinion structure is generally used to convert a rotational motion into a linear motion, or vice versa. At present, the gear rack is rigidly connected, so that the parts are easily damaged or the service life of the parts is reduced when impact is encountered in the use process.

The patent with the application number of CN201420058971.7 discloses a gear and rack meshed adjusting mechanism, which comprises a rotary mounting seat, a pin shaft, a guide sleeve, a bearing, a speed reducer mounting seat, a gear, a threaded welding sleeve, an adjusting screw, a compression spring and a rack, wherein the right end of the rotary mounting seat is connected with the guide sleeve; the adjusting screw rod penetrates through a waist-shaped hole formed in the left end of the rotary mounting seat; one end with threads of the adjusting screw is screwed into the threaded welding sleeve; a step is arranged at the non-threaded end of the adjusting screw rod; the compression spring is arranged between the step and the vertical plate of the rotary mounting seat; the adjusting screw compresses the compression spring; the gear is positioned above the rotary mounting seat; under the action of the elastic force of the compression spring, the rotary mounting seat rotates around the pin shaft, so that the gear is firmly meshed with the rack on the side surface of the ground steel rail.

However, in the process of mutually meshing the gear and the rack in the equipment, if the equipment is impacted by the outside, the positions of the gear and the rack are not stable enough, and the meshing effect is not good enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a gear and rack meshing auxiliary mechanism.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a rack and pinion meshing auxiliary mechanism comprises a first installation block, wherein the top of the first installation block is provided with an installation groove, the inner walls of two sides of the installation groove are provided with the same installation plate in a sliding manner, the bottom of the installation plate is fixedly provided with a fixed block, one side of the fixed block is rotatably provided with one end of two connecting rods, the inner wall of the bottom of the installation groove is fixedly provided with two fixed rods, one side of each fixed rod is provided with a through hole along the horizontal direction, the same round rod is movably installed between the two through holes and is sleeved with two fixed rings, the fixed rings are both positioned between the two fixed rods, the diameter of each fixed ring is larger than that of each through hole, the other ends of the two connecting rods are respectively rotatably installed on one side of the two fixed rings, four corners of the top of the first installation block are provided with placing grooves along the vertical direction, and the connecting rods are movably installed in the placing grooves, the one end of two connecting rods all extends to outside the standing groove and fixed mounting has same second installation piece, the rotation groove has been seted up to one side of second installation piece, rotates on the inner wall of one side in rotation groove and installs the gear, be equipped with the rack between first installation piece and the second installation piece, the rack meshes with the gear mutually, and has seted up first spout in the bottom of rack along the horizontal direction, the top fixed mounting of mounting panel has two montants, and the one end of two montants all rotates installs the gyro wheel, and the gyro wheel all rolls with first spout looks adaptation and two gyro wheels and installs in first spout.

Preferably, the round bar is sleeved with two first springs, the first springs located on different sides are located between the fixing bar and the fixing ring, and two ends of each first spring are fixed on one side, close to the fixing bar and the fixing ring, respectively.

Preferably, the inner wall of the bottom of the mounting groove is provided with a second sliding groove along the horizontal direction, the second sliding groove is internally provided with two sliding blocks in a sliding manner, and the two sliding blocks are respectively fixedly connected with the bottoms of the two fixing rings.

Preferably, all cup jointed the second spring on four connecting rods, the one end of second spring is all fixed on the connecting rod, and the other end is all fixed on one side inner wall of standing groove.

Preferably, annular chutes are formed in two sides of the gear, a connecting hole is formed in one side of the second mounting block along the horizontal direction, the connecting hole is communicated with the rotating groove, two clamping plates are rotatably mounted on the inner wall of the bottom of the connecting hole, a same screw rod is rotatably mounted between the two clamping plates, two screw rod guide sleeves are sleeved on the screw rod in a threaded manner, the thread directions of the two screw rod guide sleeves are opposite, balls are rotatably mounted on one sides, close to each other, of the two clamping plates, the balls are rotatably mounted in the two annular chutes respectively in a matched manner with the annular chutes, the two balls are rotatably mounted in the two annular chutes respectively, a fixed gear is fixedly sleeved on the screw rod, a pulling rack is slidably mounted on the inner wall of the bottom of the connecting hole, and the pulling rack is meshed with the fixed gear, one end of the pulling rack extends to the outside of the second mounting block, and a pull rod is fixedly mounted on the inner wall of the bottom of the connecting hole.

Preferably, one side fixed mounting that two grip blocks are close to each other has same third spring, one side fixed mounting that the second installation piece is close to the pull rod has the horizontal pole, and the horizontal pole is located the top of pull rod and one side of horizontal pole set up threaded hole, and the screw hole internal thread installs the gag lever post, and the both ends of gag lever post all extend to the screw hole outside and keep away from the one end fixed mounting of pull rod and have the bull stick, the spacing groove has been seted up at the top of pull rod, spacing groove and gag lever post looks adaptation.

The utility model discloses in, a rack and pinion meshing complementary unit, when the rotation of gear drives the removal about the rack, the rack is through the effect of first spring for the connecting rod is constantly pushing up the fixed block, and the fixed block is pushing up the mounting panel, makes two gyro wheels at mounting panel top constantly pushing up the rack, makes the rack whole can not have great rocking throughout in vertical direction, is convenient for mesh mutually with the gear.

Through pulling the pull rod left, drive the pulling rack and remove left, the pulling rack drives the rotation of fixed gear, and the fixed gear drives the rotation of lead screw, and the lead screw drives two lead screw guide pin bushings and parts for the lead screw guide pin bushing extrudes the grip block respectively, drives two balls on the grip block and removes in opposite directions, has just pressed from both sides tightly the gear then, and at the tight in-process of clamp, the ball rolls in annular spout all the time, does not influence the rotation of gear. In order to prevent the positions of the two clamping plates from loosening, the rotating rod is rotated to drive the limiting rod to move downwards, so that the limiting rod is clamped into the limiting groove in the pull rod to fix the pull rod, and then the positions of the clamping plates are fixed. The utility model discloses simple structure, convenient to use, be convenient for to gear and rack meshing process, strengthen meshed stability.

Drawings

Fig. 1 is a schematic structural view of a rack and pinion engagement assisting mechanism provided by the present invention;

fig. 2 is a schematic structural view of a part a of a rack and pinion engagement assisting mechanism according to the present invention;

fig. 3 is a side view of a rack and pinion engagement assisting mechanism according to the present invention.

In the figure: the device comprises a first mounting block 1, a second mounting block 2, a rotating groove 3, an annular sliding groove 3, a clamping plate 4, a pulling rack 5, a rotating rod 6, a pulling rod 7, a placing groove 8, a mounting plate 9, a first mounting block 10, a round rod 11, a first spring 12, a fixing ring 13, a connecting rod 14, a fixing block 15, a second spring 16, a rack 17, a connecting rod 18, a vertical rod 19, a screw rod 20, a third spring 21, a ball 22, a screw rod guide sleeve 23 and a fixed gear 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-3, a rack and pinion meshing auxiliary mechanism comprises a first mounting block 10, and is characterized in that a mounting groove is formed at the top of the first mounting block 10, the same mounting plate 9 is slidably mounted on the inner walls of both sides of the mounting groove, a fixing block 15 is fixedly mounted at the bottom of the mounting plate 9, one end of each of two connecting rods 14 is rotatably mounted at one side of the fixing block 15, two fixing rods are fixedly mounted on the inner wall of the bottom of the mounting groove, through holes are formed in one side of each of the two fixing rods in the horizontal direction, the same round rod 11 is movably mounted between the two through holes, two fixing rings 13 are sleeved on the round rod 11, the fixing rings 13 are positioned between the two fixing rods, the diameter of each fixing ring is larger than that of the through hole, the other ends of the two connecting rods 14 are rotatably mounted on one side of the two fixing rings 13, four corners of the top of the first mounting block 10 are vertically provided with placing grooves 8, equal movable mounting and connecting rod 18 in the standing groove 8, the one end of two connecting rods 18 all extends to the standing groove 8 outer and fixed mounting have same second installation piece 1, rotation groove 2 has been seted up to one side of second installation piece 1, it installs the gear to rotate on the inner wall of one side of rotation groove 2, be equipped with rack 17 between first installation piece 10 and the second installation piece 1, rack 17 meshes with the gear mutually, and rack 17's bottom has seted up first spout on the horizontal direction, the top fixed mounting of mounting panel 9 has two montants 19, the one end of two montants 19 is all rotated and is installed the gyro wheel, the gyro wheel is all roll-mounted in first spout with first spout looks adaptation and two gyro wheels.

Example two

The utility model discloses in, two first springs 12 have been cup jointed on the round bar 11, first spring 12 that is located the difference side all is located between dead lever and the solid fixed ring 13 and the both ends of first spring 12 are fixed respectively on one side that dead lever and solid fixed ring 13 are close to each other, effect through first spring 12, make connecting rod 14 constantly push up fixed block 15, fixed block 15 is pushing up mounting panel 9, make two gyro wheels at mounting panel 9 top constantly push up rack 17, make rack 17 whole can not have great rocking in vertical direction all the time, be convenient for mesh with the gear mutually.

The utility model discloses in, along having seted up the second spout on the level is reverse on the bottom inner wall of mounting groove, slidable mounting has two sliders in the second spout, two sliders respectively with two solid fixed ring 13's bottom fixed connection, through the removal of second spout and slider solid fixed ring 13 of being convenient for.

The utility model discloses in, all cup jointed second spring 16 on four connecting rods 18, second spring 16's one end is all fixed on connecting rod 18, and on one side inner wall of the equal fixed standing groove 8 of the other end, can play the effect of injecing to the distance between first installation piece 10 and the second installation piece 1 through second spring 16.

In the utility model, two sides of the gear are both provided with annular chutes 3, one side of the second mounting block 1 is provided with a connecting hole along the horizontal direction, the connecting hole is communicated with the rotating groove 2, two clamping plates 4 are rotatably mounted on the inner wall of the bottom of the connecting hole, the same screw rod 20 is rotatably mounted between the two clamping plates 4, two screw rod guide sleeves 23 are sleeved on the screw rod 20 in a threaded manner, the thread directions of the two screw rod guide sleeves 23 are opposite, balls 22 are respectively and rotatably mounted on the adjacent sides of the two clamping plates 4, the balls 22 are matched with the annular chutes 3, the two balls 22 are respectively and rotatably mounted in the two annular chutes 3, fixed gears 24 are fixedly sleeved on the screw rod 20, pulling racks 5 are slidably mounted on the inner wall of the bottom of the connecting hole, the pulling racks 5 are meshed with the fixed gears 24, one end of the pulling racks 5 extends out of the second mounting block 1, and pull rods 7 are fixedly mounted on the inner wall of the bottom of the connecting hole, through pulling pull rod 7 left, drive pulling rack 5 and remove left, pulling rack 5 drives the rotation of fixed gear 24, fixed gear 24 drives the rotation of lead screw 20, lead screw 20 drives two lead screw guide sleeves 23 and separately for lead screw guide sleeves 23 extrude grip block 4 respectively, drive two balls 22 on the grip block 4 and remove in opposite directions, just pressed from both sides tightly the gear then, and at the tight in-process of clamp, ball 22 rolls in annular spout 3 all the time, does not influence the rotation of gear.

The utility model discloses in, one side fixed mounting that two grip blocks 4 are close to each other has same third spring 21, one side fixed mounting that second installation piece 1 is close to pull rod 7 has the horizontal pole, the horizontal pole is located the top of pull rod 7 and one side of horizontal pole set up threaded hole, threaded hole internal thread installs the gag lever post, the both ends of gag lever post all extend to the screw hole outside and keep away from the one end fixed mounting of pull rod 7 has bull stick 6, the spacing groove has been seted up at the top of pull rod 7, spacing groove and gag lever post looks adaptation, be convenient for two grip blocks 4's restoration through third spring 21, in order to make two grip blocks 4's position can not become flexible, through rotating bull stick 6, drive the gag lever post downstream, make the gag lever post card advance the spacing groove on the pull rod 7, fix pull rod 7, then, position to grip block 4 has fixed.

The utility model discloses in, when the rotation of gear drives the removal of rack 17 and removes, rack 17 is through the effect of first spring 12 for connecting rod 14 is constantly pushing up fixed block 15, and fixed block 15 is pushing up mounting panel 9, makes two gyro wheels at mounting panel 9 top constantly pushing up rack 17, makes rack 17 whole can not have great rocking throughout in vertical direction, is convenient for mesh mutually with the gear.

Through pulling pull rod 7 left, drive pulling rack 5 and remove left, pulling rack 5 drives the rotation of fixed gear 24, fixed gear 24 drives the rotation of lead screw 20, lead screw 20 drives two lead screw guide sleeves 23 and separately for lead screw guide sleeves 23 extrude grip block 4 respectively, drive two balls 22 on the grip block 4 and remove in opposite directions, just pressed from both sides tightly the gear then, and at the tight in-process of clamp, ball 22 rolls in annular spout 3 all the time, does not influence the rotation of gear. In order to make the position of two grip blocks 4 not hard up, through rotating the bull stick 6, drive the gag lever post downstream for the gag lever post card advances the spacing groove on the pull rod 7, fixes pull rod 7, has then fixed grip block 4's position. The utility model discloses simple structure, convenient to use, be convenient for to gear and rack meshing process, strengthen meshed stability.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A gear rack meshing auxiliary mechanism comprises a first installation block (10) and is characterized in that the top of the first installation block (10) is provided with an installation groove, the inner walls of two sides of the installation groove are provided with the same installation plate (9) in a sliding manner, the bottom of the installation plate (9) is fixedly provided with a fixed block (15), one side of the fixed block (15) is rotatably provided with one end of two connecting rods (14), the inner wall of the bottom of the installation groove is fixedly provided with two fixed rods, one side of each fixed rod is provided with a through hole along the horizontal direction, a same round rod (11) is movably arranged between the two through holes, the round rod (11) is sleeved with two fixed rings (13), the fixed rings (13) are positioned between the two fixed rods, the diameter of each fixed ring is larger than that of the through hole, the other ends of the two connecting rods (14) are respectively rotatably arranged on one side of the two fixed rings (13), four corners of the top of the first mounting block (10) are provided with placing grooves (8) along the vertical direction, connecting rods (18) are movably mounted in the placing grooves (8), one ends of the two connecting rods (18) extend out of the placing grooves (8) and are fixedly provided with the same second mounting block (1), a rotating groove (2) is arranged at one side of the second mounting block (1), a gear is rotatably mounted on the inner wall of one side of the rotating groove (2), a rack (17) is arranged between the first mounting block (10) and the second mounting block (1), the rack (17) is meshed with the gear, and the bottom of rack (17) has seted up first spout on the horizontal direction, the top fixed mounting of mounting panel (9) has two montants (19), and the one end of two montants (19) is all rotated and is installed the gyro wheel, and the gyro wheel is all roll-mounted in first spout with first spout looks adaptation and two gyro wheels.

2. The rack and pinion meshing auxiliary mechanism according to claim 1, wherein two first springs (12) are sleeved on the round rod (11), the first springs (12) located on different sides are located between the fixed rod and the fixed ring (13), and two ends of each first spring (12) are respectively fixed on the side where the fixed rod and the fixed ring (13) are close to each other.

3. The gear rack meshing auxiliary mechanism is characterized in that a second sliding groove is formed in the inner wall of the bottom of the mounting groove in the horizontal reverse direction, two sliding blocks are slidably mounted in the second sliding groove, and the two sliding blocks are fixedly connected with the bottoms of the two fixing rings (13) respectively.

4. The rack and pinion meshing auxiliary mechanism according to claim 1, wherein the four connecting rods (18) are sleeved with second springs (16), one ends of the second springs (16) are fixed on the connecting rods (18), and the other ends of the second springs are fixed on the inner wall of one side of the placing groove (8).

5. The gear and rack meshing auxiliary mechanism is characterized in that two sides of the gear are provided with annular sliding grooves (3), one side of the second mounting block (1) is provided with a connecting hole along the horizontal direction, the connecting hole is communicated with the rotating groove (2), two clamping plates (4) are rotatably mounted on the inner wall of the bottom of the connecting hole, the same screw rod (20) is rotatably mounted between the two clamping plates (4), two screw rod guide sleeves (23) are sleeved on the screw rod (20) in a threaded manner, the thread directions of the two screw rod guide sleeves (23) are opposite, balls (22) are rotatably mounted on the sides, close to each other, of the two clamping plates (4), the balls (22) are matched with the annular sliding grooves (3), the two balls (22) are respectively rotatably mounted in the two annular sliding grooves (3), and a fixed gear (24) is fixedly sleeved on the screw rod (20), a pulling rack (5) is slidably mounted on the inner wall of the bottom of the connecting hole, the pulling rack (5) is meshed with the fixed gear (24), one end of the pulling rack (5) extends out of the second mounting block (1), and a pull rod (7) is fixedly mounted on the inner wall of the bottom of the connecting hole.

6. The gear and rack meshing auxiliary mechanism is characterized in that one side, close to each other, of each of the two clamping plates (4) is fixedly provided with the same third spring (21), one side, close to the pull rod (7), of the second mounting block (1) is fixedly provided with a cross rod, the cross rod is located above the pull rod (7), one side of the cross rod is provided with a threaded hole, a limiting rod is installed in the threaded hole, two ends of the limiting rod extend out of the threaded hole, one end, far away from the pull rod (7), of the limiting rod is fixedly provided with a rotating rod (6), the top of the pull rod (7) is provided with a limiting groove, and the limiting groove is matched with the limiting rod.