CN105033316A - Working feed fast backward refitting mechanism suitable for common vehicles - Google Patents

Abstract

The invention relates to a work-forward and fast-reverse modification mechanism suitable for ordinary vehicles, comprising: a frame body, a driving mechanism and a toggle mechanism installed on the frame body, the drive mechanism and the toggle mechanism are connected by a fork lever, and the drive mechanism is composed of Driven by the power device, the driving mechanism drives the drill bit to move, and the driving mechanism can drive the driving gear to rotate forward and reverse; the toggle mechanism includes a sliding lever, and two fork levers are arranged on the lever, and the two fork levers are respectively located on the sides of the driving gear. The two ends are outside; one end of the drive shaft is provided with a screw, and the threaded sleeve connected to the soft rope is sleeved on the screw; the swing rod is connected to the driving rod through the first rotating shaft, and the swing rod is connected to the pulley rod through the second rotating shaft, the first soft rope and the second rotating shaft The two soft ropes are respectively connected to the swing rod from the direction of both sides of the swing rod between the first rotating shaft and the second rotating shaft, the first soft rope is directly connected to the swing rod from the nearest side, and the second soft rope passes through at least A pulley is guided to connect the swing rod from the other side, and the driving rod is provided with a projection, and the projection is connected with the stop mechanism.

Description

A work-forward and fast-reverse modification mechanism suitable for ordinary vehicles

technical field

The invention relates to a lathe tailstock, in particular to a work-forward and fast-reverse modification mechanism suitable for ordinary lathes.

Background technique

Drilling on an ordinary lathe, the general method is to install the tapered shank of the drill in the tapered hole of the tailstock, fix the tailstock on the lathe guide rail, and then manually operate the hand wheel at the rear end of the tailstock to make the tailstock The seat cylinder advances along the axial direction of the drill bit to realize the translational feed of the drill bit; otherwise, the handwheel is reversed to make the tailstock cylinder retreat along the axial direction of the drill bit to realize the translational retraction of the drill bit. This method has high labor intensity and low labor efficiency for mass production of shaft holes, especially through holes.

Therefore, for general drilling processing, especially large-scale through-hole processing, it is necessary to design a set of mechanical transmission mechanism to realize automatic operation, reversing, and stop of hand wheel rotation, instead of manual hand cranking.

This type of mechanism is generally composed of a drive mechanism for power output and a toggle mechanism for controlling reversing. After the drilling of a workpiece is completed, the drill needs to be paused so that the workpiece can be replaced after it moves back. In order to temporarily cut off the power output without stopping the operation of the driving mechanism, a set of auxiliary devices is also needed to control the toggle mechanism.

Contents of the invention

The invention overcomes the disadvantages of the prior art, and provides a lathe tailstock with a cycle driving mechanism assisted by a spring swing rod and constrained by a soft rope.

In order to achieve the above object, the technical solution adopted by the present invention is: a work-forward and fast-reverse modification mechanism suitable for ordinary vehicles, including: a frame body, a drive mechanism and a toggle mechanism installed on the frame body, and a drive mechanism and a toggle mechanism. The mechanism is connected by a fork lever, the driving mechanism is driven by the power device, and the driving mechanism drives the drill bit to move, and the characteristics are that,

- the drive mechanism can drive the drive gear to rotate forward and reverse;

- the toggling mechanism includes a sliding lever, on which two fork levers are arranged, and the two fork levers are respectively located outside the two ends of the driving gear;

One end of the drive shaft is provided with a screw rod, and the threaded sleeve connected to the soft rope is sleeved on the screw rod; the swing rod is connected to the driving rod through the first rotating shaft, and the swing rod is connected to the pulley rod through the second rotating shaft, and one end of the first spring is fixed Connected to the swing link between the first rotating shaft and the second rotating shaft, the other end of the first spring is fixedly connected to the fixed block, and the first soft rope and the second soft rope swing from the first rotating shaft and the second rotating shaft respectively. The direction on both sides of the rod is connected to the swing rod, the first soft rope is directly connected to the swing rod from the nearest side, and the second soft rope is guided by at least one pulley on the pulley rod to connect to the swing rod from the other side;

A bump is also provided on the shift lever, and the bump is engaged with the stop mechanism.

In a preferred embodiment of the present invention,

- when the driving gear meshes with the first gear, the swing bar is biased towards the first gear, and the first spring is located on one side of the swing bar's offset direction;

- When the driving gear meshes with the second gear, the swing bar is biased toward the second gear, and the first spring is located at one side of the swing bar's biasing direction.

In a preferred embodiment of the present invention, the screw sleeve is close to the side of the second gear, the screw sleeve is connected to a bent rod, and the free end of the bent rod is connected to the soft rope.

In a preferred embodiment of the present invention,

- when the driving gear meshes with the first gear, the screw drives the screw sleeve away from the driving gear, and the first flexible rope is in a taut state prior to the second flexible rope;

- When the driving gear meshes with the second gear, the screw drives the screw sleeve close to the driving gear, and the second flexible rope is in a tensioned state prior to the first flexible rope.

In a preferred embodiment of the present invention, the two ends of the driving rod are respectively slidably socketed on the respective sleeve blocks.

In a preferred embodiment of the present invention, the stop mechanism includes a stop rod with a wedge-shaped head at one end and a fixed plate, the fixed plate is connected with a sleeve block, and the wedge-shaped head of the stop rod protrudes from the fixed plate On the outside of one surface, the other end of the stop rod is sleeved with a second spring protruding from the outside of the other surface of the fixing plate, and the two ends of the second spring are respectively fixed on the fixing plate and the stop rod, and the wedge-shaped head Consists of a wedge face and a rectangular face.

In a preferred embodiment of the present invention, a handle is provided at the end of the stop rod on the stop mechanism.

In a preferred embodiment of the present invention, a stopper is provided on both sides of the free end of the swing rod.

In a preferred embodiment of the present invention, the driving gear sliding key is arranged on the driving shaft, and the moving distance of the driving gear on the sliding key of the driving shaft is the axis of the first gear and the second gear to the distance.

In a preferred embodiment of the present invention, the drive mechanism includes a first gear and a second gear that can respectively mesh with the drive gear, the drive gear is slidably arranged on the drive shaft, the first gear and the second gear The gears rotate in opposite directions; the first gear is coaxially connected with a transmission gear, and the transmission gear meshes with the second gear.

In a preferred embodiment of the present invention, the distance between the two shift fork rods is greater than the axial length of the driving gear.

In a preferred embodiment of the present invention, the first spring is in a stretched state.

In a preferred embodiment of the present invention, the first gear and the transmission gear are coaxially arranged on the first transmission shaft, the second gear is arranged on the second transmission shaft, and the first transmission shaft and the The second transmission shaft is arranged in parallel, and the second gear meshes with the transmission gear.

In a preferred embodiment of the present invention, the power device is a motor, and one end of the drill bit is coaxially provided with a hand wheel pulley.

In a preferred embodiment of the present invention, the first transmission shaft is connected to the motor by a belt, and the drive shaft is connected to the pulley of the hand wheel by a belt.

The hand wheel shaft at the other end of the lathe position where the drill bit is located is provided with a hand wheel belt pulley.

The present invention solves the defect existing in the background technology, and the present invention has the following beneficial effects:

(1) Through the action of the toggle mechanism, the position of the driving gear can be changed between the first gear and the second gear, which plays the role of changing the meshing object of the driving gear. At the same time, because the first gear and the second gear rotate in opposite directions, Ensure that the drive shaft changes direction of rotation each time the drive gear changes meshing objects.

(2) The rotation direction of the drive shaft and the toggle direction of the toggle mechanism just form a linkage structure. When the drive gear meshes with the first gear, the toggle mechanism is driven by the drive shaft so that the toggle mechanism has the ability to turn the drive gear to the second gear. The tendency and power of the gear, and finally the driving gear is separated from the first gear, and driven by the elastic potential energy of the first spring on the swing rod to mesh with the second gear; otherwise, when the driving gear meshes with the second gear, the toggle mechanism will make the driving gear reverse movement.

(3) On the one hand, the structure of the feather key can ensure that there is a clamp limit between the drive gear and the drive shaft along the circumference of the drive shaft, so that the drive gear will not move relative to the drive shaft along the circumference; on the other hand, the drive gear can Sliding along the axial direction of the drive shaft ensures that the drive gear moves between the first gear and the second gear.

(4) The two fork levers are respectively located on both sides of the drive gear, and the drive gear can move axially along the drive shaft under the drive of the lever.

(5) The set block can limit the movement posture of the lever, and at the same time, the stopper can limit the swing lever driven by the first spring within a certain swing range, and then the movement range of the lever is also limited to ensure that the lever will not be excessive The left and right offsets only ensure the distance between the first gear and the second gear for the drive gear to change mesh.

(6) When the driving gear meshes with the first gear, the pendulum shifts toward the side of the first gear. At this time, the first spring tightens the pendulum, and the screw sleeve is driven away from the first gear by the screw rod, and then the first soft rope is first Tighten it, and then pull the pendulum to rotate towards the second gear. When the pendulum is over the vertical state, the driving gear will be separated from the first gear. At this time, the tension of the first spring will move the pendulum towards the second gear. Pull and swing the lever towards the second gear, and finally press the drive gear to mesh with the second gear.

(7) During the left and right movement of the fork lever, the two fork levers continuously push the drive gear to move left and right along the drive shaft to change the meshing objects.

(8) The mutual cooperation between the first rotating shaft and the second rotating shaft enables the pendulum to rotate with the second rotating shaft as the center of a circle, drives the shift lever to move left and right, and then drives the shift fork lever to follow the shift rod to move left and right.

(9) Two pulleys are set on the left and right sides of the second rotating shaft. After the second soft rope bypasses the two pulleys, the changed second soft rope pulls the direction of the pendulum to ensure that the two soft ropes can move from different directions. Pull the lever.

(10) During the left and right movement of the bending rod, the first soft rope and the second soft rope can achieve an asynchronous preferential tightening state, so that the pendulum can only be tightened by one soft rope at the same time.

(11) The setting of the stopper ensures that the lower end of the swing rod will not deviate beyond the range, that is, the swing rod will not make the moving range of the lever too large.

(12) The structure of the screw driving the screw sleeve, and then the screw sleeve provides the power source for the toggle mechanism. Since the rotation direction of the screw is related to the meshing object of the drive gear, the movement direction of the screw sleeve is related to the rotation direction of the drive shaft, and The direction of rotation of the drive shaft is controlled by the toggle mechanism; thus, the above-mentioned process forms a cyclic motion process that influences each other, and the toggle mechanism and the drive mechanism continuously affect the continuous cycle control.

(13) When the driving gear meshes with the first gear, the reel close to the second gear will tighten its corresponding soft rope. When the soft rope is stretched to a certain degree, the soft rope will pull the pendulum. At this time, the fork lever on the shift lever moves, and the fork lever pushes the driving gear to the direction of the second gear, and finally makes the driving gear mesh with the second gear, so that the driving shaft reverses; otherwise, the driving gear is pushed to the first gear. gear direction and mesh.

(14) The distance between the two shift fork rods is greater than the axial length of the drive gear, which can provide inertial buffering for the reverse movement of the drive gear.

(15) The distance between the two shift fork rods is greater than the axial length of the drive gear, and the length longer than the drive gear is the margin of the distance between the two shift fork rods relative to the length of the drive gear. Due to the existence of the above margin, the swing rod in When in the vertical state, the two shift fork rods will not be blocked by the drive gear, and the swing rod only needs to rely on inertia when it crosses its vertical state.

(16) The transmission gear is coaxial with the first gear, and the second gear meshes with the transmission gear to realize the reverse rotation of the first gear and the second gear.

(17) The handle can pull up the stop rod on the stop mechanism, so that the bump blocked by the right-angled surface on the stop mechanism can be released from the restraint, and the lever can continue to move left and right. As long as the mechanism is not pulled up, it can only do single Periodic movement.

(18) The position of the stop mechanism can block the protrusion at the position where the drive gear is just between the first gear and the second gear, and the drive gear is disengaged at this time.

(19) Through the transmission function of the driving mechanism, the purpose of transmitting the power of the motor to the drill bit is realized; at the same time, through the function of the toggle mechanism, the meshing object of the driving gear can be changed, and then the drill bit and stop after the retreat is completed.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a three-dimensional structure diagram one of a preferred embodiment of the present invention;

Fig. 2 is a three-dimensional structure diagram two of a preferred embodiment of the present invention;

Fig. 3 is a three-dimensional structure diagram 1 of a toggle mechanism and a drive mechanism in a preferred embodiment of the present invention;

Fig. 4 is a three-dimensional structure diagram 2 of a toggle mechanism and a drive mechanism in a preferred embodiment of the present invention;

Fig. 5 is the three-dimensional structural diagram of stop mechanism of the present invention;

In the figure: 1, the first gear, 2, the second gear, 3, the driving gear, 4, the driving shaft, 5, the feather key, 6, the transmission gear, 7, the driving lever, 8, the fork lever, 9, the cover block , 10, screw rod, 11, screw sleeve, 12, bent rod, 13, swing rod, 15, first rotating shaft, 16, second rotating shaft, 17, fixed block, 18, pulley rod, 19, pulley, 20, first Spring, 21, block, 22, the first soft rope, 23, the second soft rope, 24, bump, 25, stop mechanism, 26, stop lever, 27, second spring, 28, wedge-shaped head, 29, wedge-shaped Surface, 30, rectangular surface, 31, handle, 32, fixed plate, 33, bolt locking device, 34, frame body, 35, first transmission shaft, 36, second transmission shaft, 37, motor, 38, drill bit, 39 , Belt, 40, hand wheel, 41, handle, 42, hand wheel pulley, 43, lathe tailstock.

Detailed ways

The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so it only shows the composition related to the present invention.

As shown in Figures 1-5, a work-forward and fast-reverse modification mechanism suitable for ordinary vehicles includes: a frame body 34, and a driving mechanism and a toggle mechanism installed on the frame body 34. The fork rods 8 are connected, the driving mechanism is driven by the power unit, and the driving mechanism drives the drill bit 38 to move,

The drive mechanism includes a drive gear 3 that can mesh with the first gear 1 and the second gear 2 respectively, the drive gear 3 is slidably arranged on the drive shaft 4, and the rotation direction of the first gear 1 and the second gear 2 is opposite; The action can change the position of the driving gear 3 between the first gear 1 and the second gear 2, which plays the role of changing the meshing object of the driving gear 3. At the same time, because the first gear 1 and the second gear 2 rotate in opposite directions, it is guaranteed that each After the secondary driving gear 3 changes the meshing object, the driving shaft 4 all changes the direction of rotation.

The first gear 1 and the transmission gear 3 are coaxially arranged on the first transmission shaft 35, the second gear 2 is arranged on the second transmission shaft 36, the first transmission shaft 35 is arranged in parallel with the second transmission shaft 36, and the second gear 2 Mesh together with transmission gear 3, power unit is motor 37, and drill bit 38 one end coaxially is provided with handwheel belt pulley 42. Through the transmission effect of the driving mechanism, the purpose of delivering the power of the motor 37 to the drill bit 38 is achieved; at the same time, through the action of the toggle mechanism, the meshing object of the driving gear 3 can be changed, and then the drill bit 38 can move forward and backward along its axial direction .

The first transmission shaft 35 is connected to the motor 37 by a belt 39 , and the belt 39 of the driving shaft 4 is connected to the hand wheel pulley 42 . The belt pulley on the motor 37, the belt pulley on the first transmission shaft 35, the belt pulley on the drive shaft 4 and the hand wheel pulley 42 have played the role of the motor 37 rotating speed deceleration through the transmission of two belts 39, the hand wheel belt pulley 42 The speed is reduced. The motor 37 that the present invention adopts is also a low-speed motor.

Handwheel pulley 42 ends are provided with handwheel 40, and handwheel 40 is provided with handle 41, and the setting of handwheel 40 and handle 41 can realize that human operation drives drill bit 38 to advance and retreat along its axial direction.

The toggling mechanism includes a sliding lever 7, on which two fork levers 8 are arranged. Axis 4 moves axially.

One end of the drive shaft 4 is provided with a screw rod 10, and the threaded sleeve 11 connected to the soft rope 14 is threaded on the screw rod 10; The direction of rotation is related to the meshing object of the drive gear 3, so the direction of motion of the screw sleeve 11 is related to the direction of rotation of the drive shaft 4, and the direction of rotation of the drive shaft 4 is controlled by the toggle mechanism; During the cycle movement process, the toggle mechanism and the drive mechanism continuously affect the continuous cycle control.

The fork 13 is connected to the shift lever 7 through the first rotating shaft 15, the fork 13 is connected to the pulley lever 18 through the second rotating shaft 16, and one end of the first spring 20 is fixedly connected to the fork 13 between the first rotating shaft 15 and the second rotating shaft 16. The other end of the first spring 20 is fixedly connected to the fixed block 17 . The mutual cooperation of the first rotating shaft 15 and the second rotating shaft 16 enables the swing lever 13 to rotate with the second rotating shaft 16 as the center of a circle, driving the driving rod 7 to move left and right, and then driving the shift fork rod 8 to follow the driving rod 7 to move left and right.

The first flexible rope 22 and the second flexible rope 23 are respectively connected to the swing lever 13 from the direction on both sides of the swing lever 13 between the first rotating shaft 15 and the second rotating shaft 16, and the first flexible rope 22 is directly connected from the nearest side. Fork 13, the second soft rope 23 is guided by at least one pulley 19 on the pulley bar 18 and connected with fork 13 from the other side. Two pulleys 19 are arranged on the left and right sides of the second rotating shaft 16. After the second soft rope 23 bypasses the two pulleys 19, the transformed second soft rope 23 pulls the direction of the pendulum 13 to ensure that the two soft ropes 14 can be moved separately. Pull the swing lever 13 from different directions. During the left and right movement of the curved rod 12, the first flexible rope 22 and the second flexible rope 23 can achieve an asynchronous priority tension state, so that the swing rod 13 can only be tightened by one flexible rope 14 at the same time. .

The rotation direction of the drive shaft 4 and the toggle direction of the toggle mechanism just form a linkage structure. When the drive gear 3 meshes with the first gear 1, the toggle mechanism is driven by the drive shaft 4 so that the toggle mechanism has the ability to turn the drive gear 3 to The inclination and power of the second gear 2, and finally the driving gear 3 breaks away from the first gear 1, and is driven by the elastic potential energy of the first spring 20 on the fork 13 to mesh with the second gear 2; otherwise, the driving gear 3 and the second gear 2 When engaged, the toggle mechanism will cause the drive gear 3 to move in reverse.

During the left and right movement of the shift lever 7, the shift fork lever 8 continuously pushes the drive gear 3 to move left and right along the drive shaft 4 through the two shift fork levers 8 to change the meshing object.

When the driving gear 3 meshes with the first gear 1, the swing lever 13 is biased towards the direction of the first gear 1, and the first spring 20 is located on one side of the offset direction of the swing lever 13; when the driving gear 3 is meshed with the second gear 2, the swing lever 13 is biased toward In the direction of the second gear 2 , the first spring 20 is located on one side of the shifting direction of the swing rod 13 . When the driving gear 3 is meshed with the first gear 1, the swing rod 13 is shifted toward the first gear 1 side, at this moment, the first spring 20 tightens the swing rod 13, and the screw sleeve 11 is driven away from the first gear 1 by the screw rod 10, and then The first soft rope 22 is first tightened, and then the swing lever 13 is pulled to rotate towards the second gear 2. When the swing lever 13 crosses the vertical state, the drive gear 3 is disengaged from the first gear 1. At this time, the first spring 20 The pulling force will pull the swing bar 13 towards the second gear 2, swing the swing bar 13 towards the second gear 2, and finally press the driving gear 3 to mesh with the second gear 2.

The first spring 20 is in tension.

The screw sleeve 11 is close to the side of the second gear 2 , the screw sleeve 11 is connected to the bent rod 12 , and the free end of the bent rod 12 is connected to the soft rope 14 .

When the driving gear 3 meshes with the first gear 1, the screw 10 drives the screw sleeve 11 away from the driving gear 3, and the first soft rope 22 is in a tight state before the second soft rope 23; when the driving gear 3 meshes with the second gear 2, The screw rod 10 drives the screw sleeve 11 to approach the driving gear 3 , and the second flexible rope 23 is in a taut state prior to the first flexible rope 22 . When the drive gear 3 meshes with the first gear 1, the reel close to the second gear 2 will tighten its corresponding soft rope 14, and when the soft rope 14 is stretched to a certain degree, the soft rope 14 will swing When the lever 13 is pulled, the fork lever 8 on the shift lever 7 also moves, and the fork lever 8 pushes the driving gear 3 to the direction of the second gear 2, and finally makes the driving gear 3 mesh with the second gear 2, so that the driving Shaft 4 reverses; conversely, drive gear 3 is pushed to the direction of first gear 1 and engages.

The distance between the two shift fork rods 8 is greater than the axial length of the drive gear 3 , which can provide inertial buffering for the reverse movement of the drive gear 3 . The distance between the two shift fork rods 8 is greater than the axial length of the drive gear 3, and the length longer than the drive gear 3 is the margin of the distance between the two shift fork rods 8 relative to the length of the drive gear 3. Due to the existence of the above margin, the pendulum When the bar 13 is in the vertical state, the two fork rods 8 will not be blocked by the drive gear 3, and the fork 13 only needs to rely on inertia when it crosses its vertical state.

Fork 13 free ends both sides are respectively provided with a stopper 21, and the setting of stopper 21 guarantees that the lower end of fork 13 can not deviate beyond the range, that is fork 13 can not make driving lever 7 move too much.

The two ends of the driving rod 7 are respectively slidably socketed on the respective corresponding sets of blocks 9, the sets of blocks 9 can limit the movement posture of the driving rod 7, and at the same time, the stopper 21 can limit the swing rod 13 driven by the first spring 20 to a certain swing. Within the range, and then the range of movement of the driving rod 7 is also limited, so as to ensure that the driving rod 7 will not deviate excessively left and right, and only ensure that the driving gear 3 changes the meshing distance between the first gear 1 and the second gear 2.

The drive gear 3 feather key 5 is arranged on the drive shaft 4, and the moving distance of the drive gear 3 on the feather key 5 of the drive shaft 4 is the axial distance between the first gear 1 and the second gear 2. The structure of the feather key 5 on the one hand It can ensure that there is a clamp limit along the circumference of the drive shaft 4 between the drive gear 3 and the drive shaft 4, and ensure that the drive gear 3 will not move relative to the drive shaft 4 along the circumference. On the other hand, the drive gear 3 can move along the drive shaft 4. 4 to ensure that the drive gear 3 moves between the first gear 1 and the second gear 2.

The first gear 1 is coaxially connected to the transmission gear 6, the transmission gear 6 meshes with the second gear 2, the transmission gear 6 is coaxial with the first gear 1, and the second gear 2 meshes with the transmission gear 6, realizing the first gear 1 and the second gear The reverse rotation of the second gear 2.

The end of stop bar 26 on stop mechanism 25 is provided with handle, and handle 31 can pull up stop bar 26 on stop mechanism 25, and the projection 24 that is blocked by right-angled surface 30 on stop mechanism 25 can break away from restraint like this, and driving lever 7 just can continue to move left and right, as long as do not pull up this mechanism just can only do single cycle motion. The position of the stop mechanism 25 can block the protrusion 24 at the position where the driving gear 3 is just between the first gear 1 and the second gear 2 , and the driving gear 3 is disengaged at this moment.

Stop mechanism 25 comprises a stop bar 26 and a fixed plate 32 that one end has wedge-shaped head 28, and fixed plate 32 is connected with a sleeve block 9, and the wedge-shaped head 28 of stop bar 26 stretches out fixed plate 32 one face outsides, and stop bar 26 is other One end of the second spring 27 protrudes from the other side of the fixing plate 32. The two ends of the second spring 27 are fixed on the fixing plate 32 and the stop bar 26 respectively.

As shown in Figure 1, the projection 24 can only cross the wedge-shaped surface 29 on the stop mechanism 25 from the left side of the stop mechanism 25 to the right side of the stop mechanism 25, but the projection 24 cannot cross the stop mechanism from the right side of the stop mechanism 25. The right-angled surface 30 on 25 reaches the left side of the stop mechanism 25 .

The curved rod 12 is provided with a bolt locking device 33 at its corner, and the part of the curved rod 12 parallel to the drive shaft 4 can be inserted into the inner hole of the bolt locking device 33 and slide in the inner hole. The bolt locking device 33 The bolts on the top are screwed in and screwed out to control the tightness; by adjusting the relative position of the bent rod 12 and the bolt locking device 33, the position adjustment of the bent rod 12 to the shift fork rod 8 can be realized, so as to adjust the shifting of the shift fork rod 8 to the driving gear. timing.

The driving rod 7 can only move along the axial direction of the driving rod 7 itself under the restriction of the cover block 9, but the driving rod 7 cannot rotate along the axial direction of the driving rod itself in the cover block 9, so that the movement on the driving rod 7 is ensured. The shift fork lever 8 can not turn to, and it has also ensured that the shift fork lever 8 can be moved to the drive gear 3 on its motion track.

The above is inspired by the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the description, and must be determined according to the scope of the claims.

Claims (10)

1. the work being suitable for general car enters a rewind repacking mechanism, comprising: support body, and the driving mechanism be arranged on support body and toggle mechanism, driving mechanism and toggle mechanism are connected by shifting fork bar, and described driving mechanism is driven by power set, and described driving mechanism drives drill bit action, it is characterized in that

-described driving mechanism can drive driven wheel to rotate and reverse;

-described toggle mechanism comprises the driving lever sliding and arrange, and described driving lever is arranged two shifting fork bars, two shifting fork bars lay respectively at outside the two ends of driven wheel;

Described driving shaft one end is provided with screw rod, and the swivel nut thread bush connecting tightrope is connected on described screw rod; Fork connects driving lever by the first rotating shaft, fork connects roller arm by the second rotating shaft, one end of first spring is fixedly connected on the fork between the first rotating shaft and the second rotating shaft, the first spring other end is fixedly connected on fixed block, first tightrope and the second tightrope connect fork from the direction of the fork both sides between the first rotating shaft and the second rotating shaft respectively, first tightrope directly connects fork from side nearby, and the second tightrope is guided by least one pulley on roller arm and connects fork from opposite side;

Described driving lever is also provided with projection, and described projection is connected with shut-down mechanism.

2. a kind of work being suitable for general car according to claim 1 enters rewind repacking mechanism, it is characterized in that: described driving mechanism comprises first gear and the second gear that can engage with driven wheel respectively, described driven wheel is slidably arranged on driving shaft, and described first gear is contrary with described second gear direction of rotation;

Described first gear coaxial connection for transmission gear, described travelling gear and described second gears meshing.

3. a kind of work being suitable for general car according to claim 2 enters rewind repacking mechanism, it is characterized in that:

When-described driven wheel and described first gears meshing, the described first gear direction of described fork deflection, described first spring is positioned at side, described fork offset direction;

When-described driven wheel and described second gears meshing, the described second gear direction of described fork deflection, described first spring is positioned at side, described fork offset direction.

4. a kind of work being suitable for general car according to claim 3 enters rewind repacking mechanism, it is characterized in that: described swivel nut is near described second gear side, and described swivel nut connects knee, and described knee free end connects described tightrope.

5. a kind of work being suitable for general car according to claim 3 or 4 enters rewind repacking mechanism, it is characterized in that:

When-described driven wheel and described first gears meshing, described in described screw drive, swivel nut is away from described driven wheel, and described first tightrope is in tensioned state prior to described second tightrope;

When-described driven wheel and described second gears meshing, described in described screw drive, swivel nut is near described driven wheel, and described second tightrope is in tensioned state prior to described first tightrope.

6. a kind of work being suitable for general car according to claim 1 enters rewind repacking mechanism, it is characterized in that: described driving lever two ends are slidably socketed respectively on each self-corresponding cover block.

7. a kind of work being suitable for general car according to claim 6 enters rewind repacking mechanism, it is characterized in that: described shut-down mechanism comprises one end with the locking lever of sphenocephaly and a fixed head, described fixed head overlaps block be connected with one, the sphenocephaly of described locking lever stretches out outside described fixed head face, outside another face of stretching out described fixed head of sheathed second spring of the described locking lever other end, described second both ends of the spring is separately fixed at described fixed head and locking lever, and described sphenocephaly comprises a lozenges and a right-angle surface.

8. a kind of work being suitable for general car according to claim 7 enters rewind repacking mechanism, it is characterized in that: on described shut-down mechanism, the end of locking lever is provided with handle.

9. a kind of work being suitable for general car according to claim 1 enters rewind repacking mechanism, it is characterized in that: described fork free end both sides are respectively provided with a block.

10. a kind of work being suitable for general car according to claim 2 enters rewind repacking mechanism, it is characterized in that: described driven wheel feather key is arranged on described driving shaft, described driven wheel displacement on the feather key of driving shaft be namely described first gear and described second gear shaft to distance.