CN113071720B - Rope slow-release device is shifted to saddlebag - Google Patents

Abstract

The invention provides a tool bag transfer rope slow release device which comprises a central shaft, a loading wheel, a ratchet wheel, an unlocking disc, an unlocking block, a pawl, a lifting shaft and a handle, wherein the handle is rotated in the positive direction to drive the unlocking disc to rotate around the central shaft, the unlocking disc rotates to drive the unlocking block to rotate, the front end of the unlocking block abuts against the tail end of the pawl to separate the front end of the pawl from the ratchet wheel, the unlocking block drives the pawl and the loading wheel to rotate together to release a steel wire rope, the pawl is clamped on the ratchet wheel again under the action of the return of a torsion spring after releasing for a short distance, the rotation release of the loading wheel is stopped, and the unlocking disc is continuously driven to complete the controllable release of the steel wire rope; the handle is reversely driven, the unlocking disc rotates reversely, the load wheel is driven to rotate reversely through the hoisting shaft, and the steel wire rope is folded. The tool bag can be safely and stably transferred to the moon surface from the detector under the condition of manual operation, and the damage to transferred objects caused by rapid descending of the tool bag and other transferred objects due to overlarge load is avoided.

Description

A tool kit transfer rope slow release device

technical field

The invention belongs to the technical field of rope release, and in particular relates to a tool bag transfer rope slow release device.

Background technique

In order to successfully complete the investigation and exploration tasks on the lunar surface, it is necessary to send astronauts and exploration tools to the lunar surface through the probe.

A tool kit for carrying tools such as investigation and exploration needs to be carried on the detector, due to the relatively large weight and volume of the tool kit. In order to facilitate the astronauts' operation, a tool kit transfer mechanism needs to be installed on the probe to transfer the tool kit from the probe to the lunar surface. However, during the transfer of the tool kit or other heavy objects, the tool kit, etc. will be caused by excessive load. Shifted objects descend quickly, which can damage the transported objects. Therefore, it is necessary to design a new slow-release device for the transfer rope of the tool bag, so as to avoid the rapid drop of the transfer object such as the tool bag due to the excessive load, which will cause damage to the transferred objects.

SUMMARY OF THE INVENTION

In view of this, the present invention aims to provide a slow release device for a tool bag transfer rope, which can safely and smoothly transfer the tool bag from the probe to the lunar surface under the condition of manual operation, so as to avoid the tool bag and the like caused by excessive load. The transfer item falls rapidly, dealing damage to the transferred item.

In order to achieve the above object, the technical scheme of the present invention is achieved in this way:

A tool bag transfer rope slow release device, comprising a central shaft, a road wheel, a ratchet, an unlocking disc, an unlocking block, a pawl, a lifting shaft and a handle, one end of the central shaft is mounted on a detector, and the load The wheel, the ratchet wheel and the unlocking plate are sequentially installed on the central shaft from the inside to the outside, the unlocking block is fixed on the unlocking plate, and the pawl is installed on the road wheel through the pawl fixing shaft, on the pawl fixing shaft A torsion spring is installed, a wire rope is wound on the road wheel, the tool bag is hung on the wire rope, the handle is installed on the unlocking plate, an arc-shaped hole is opened on the unlocking plate, and the lifting shaft is fixed on the road wheel, and the The lifting shaft penetrates into the arc hole;

By turning the handle in a positive direction, the unlocking plate is driven to rotate around the central axis, and the rotation of the unlocking plate drives the unlocking block to rotate. , realize the release of the wire rope, and after a short distance is released, due to the return action of the torsion spring, the pawl is again clamped on the ratchet wheel, the rotation release of the road wheel stops, and the controllable release of the wire rope is completed by continuously driving the unlocking disc;

The handle is driven in the reverse direction, the unlocking plate rotates in the reverse direction, and the road wheel is driven to rotate in the reverse direction through the hoisting shaft, and the wire rope is put away.

Further, the unlocking block is provided with two pieces, both of which are arc-shaped blocks, and are symmetrically installed on the unlocking disc. Correspondingly, two pawls are provided, and the two pawls simultaneously lock or unlock the ratchet wheel.

Further, the handle includes a sleeve, a handle shaft, a baffle plate and a countersunk head screw, the handle shaft is fixed at a place away from the center of the unlocking plate, the sleeve is sleeved on the handle shaft, and the sleeve is fixed by the baffle plate and the countersunk head screw. Fixed on the handle shaft.

Further, the free end of the wire rope bypassing the road wheel is fixedly connected to the tool bag after passing through the fixed pulley block, and the fixed pulley block is installed on the fixed pulley frame 1 and the fixed pulley frame 2, the fixed pulley frame 1 and the fixed pulley frame 2. installed on the detector.

Further, two needle roller bearings b are installed inside the road wheel through a retaining ring d, which are separated by a bushing a between the two needle roller bearings b, and are fixed on the central shaft by a retaining ring a.

Further, a fixing hole for the wire rope is left on the road wheel.

Further, the ratchet wheel and the central shaft are connected by a key, and between the ratchet wheel and the needle bearing b arranged close to the ratchet wheel is a bushing c that restricts the movement of the ratchet wheel.

Further, a needle roller bearing a is arranged inside the unlocking plate, which is matched with the central shaft, and the needle roller bearing a is fixed inside the unlocking plate by a retaining ring b, and the retaining ring c limits the needle roller bearing a and the unlocking plate in on the central axis.

Further, the cross section of the connecting end of the central axis and the detector is square, and four surfaces of the end are provided with clamping balls.

Further, two arc-shaped holes are symmetrically arranged on the unlocking plate, and correspondingly, two hoisting shafts are arranged on the road wheel.

Compared with the prior art, the tool kit transfer rope sustained-release device of the present invention has the following advantages:

1. When no one drives the unlocking handle, the rope slow-release device can be automatically locked to prevent the transfer item from automatically falling under its own weight.

2. After the unlocking handle is manually driven, the rope can be slowly released; when the drive is stopped, the unlocking device can quickly self-lock to avoid damage to the transfer object caused by improper operation.

3. When the unlocking handle is reversely driven, the lifting of the transferred items can be completed.

4. After the item is lifted in reverse to reach the predetermined height, the rope slow-release device still has a locking function when the drive is stopped, and the transferred item is held at the specified height.

5. The end face of the central shaft adopts the connector of the quick-install structure, which can quickly complete the assembly of the equipment.

6. Each unlock will only drop a short distance to avoid the loss of control caused by rapid and large-distance drop.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Fig. 1 is the three-dimensional structure schematic diagram of the tool bag transfer rope slow-release device;

Figure 2 is a front view of the tool kit transfer rope slow-release device;

Fig. 3 is A-A sectional view of Fig. 2;

4 is a sectional view taken along the line B-B of FIG. 2;

Fig. 5 is the locking schematic diagram of the rope slow-release device;

Fig. 6 is the unlocking schematic diagram of the rope slow-release device;

Fig. 7 is the structural schematic diagram of the connection end of the rope slow-release device and the detector;

FIG. 8 is a state diagram of the toolkit before transfer according to an embodiment of the present invention;

FIG. 9 is a diagram of a toolkit transfer process according to an embodiment of the present invention.

Description of reference numbers:

1- Center shaft, 2- Retaining ring a, 3- Bushing a, 4- Road wheel, 5- Pawl fixed shaft, 6- Bushing b, 7- Torsion spring, 8- Pawl, 9- Retaining ring b , 10-retaining ring c, 11-handle, 12-unlocking disc, 13-needle bearing, 14-countersunk head screw, 15-unlocking block, 16-ratchet, 17-shaft sleeve c, 18-needle bearing b, A , 29-fixed pulley frame II, 30-tool kit, 31-rope slow-release device, 32-curved hole, 33-interface part.

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

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

As shown in Figures 1-9, a tool bag transfer rope slow release device, including a central shaft 1, a road wheel 4, a ratchet 16, an unlocking plate 12, an unlocking block 15, a pawl 8, a lifting shaft 25 and a handle 11 , one end of the central shaft 1 is installed on the detector 26, the road wheel 4, the ratchet 16 and the unlocking plate 12 are sequentially installed on the central shaft 1 from the inside to the outside, and the unlocking block 15 is fixed on the unlocking plate. 12, the pawl 8 is installed on the road wheel 4 through the pawl fixing shaft 5, the torsion spring 7 is installed on the pawl fixing shaft 5, the wire rope 19 is wound on the road wheel 4, and the tool is suspended on the wire rope 19. The bag 30, the handle 11 is installed on the unlocking plate 12, the unlocking plate 12 is provided with an arc-shaped hole 32, the lifting shaft 25 is fixed on the road wheel 4, and the lifting shaft 25 penetrates the arc-shaped hole 32 Inside;

By rotating the handle 11 in the forward direction, the unlocking plate 12 is driven to rotate around the central axis 1, and the rotation of the unlocking plate 12 drives the unlocking block 15 to rotate. The unlocking block 15 drives the pawl 8 and the road wheel 4 to rotate together to realize the release of the wire rope, and after a short distance is released, due to the return action of the torsion spring 7, the pawl 8 is clamped on the ratchet wheel 16 again, and the rotation of the road wheel 4 is released. Stop, and complete the controllable release of the wire rope by continuously driving the unlocking disc 12; avoid the loss of control caused by rapid and large-distance descending, and each unlocking will only descend a short distance;

The handle 11 is driven in the reverse direction, the unlocking plate 12 is rotated in the reverse direction, and the road wheel 4 is driven to rotate in the opposite direction through the hoisting shaft 25, and the wire rope is retracted; Fixed connection, the fixed pulley group 27 is installed on the fixed pulley frame 1 28 and the fixed pulley frame 2 29 , and the fixed pulley frame 1 28 and the fixed pulley frame 2 29 are installed on the detector 26 .

The unlocking block 15 is provided with two pieces, both of which are arc-shaped blocks, and are symmetrically installed on the unlocking plate 12. Correspondingly, two of the pawls 8 are provided, and each pawl 8 is fixed to the road wheel through a pawl fixing shaft 5 4, each pawl fixing shaft 5 is fitted with a torsion spring 7, and the two pawls 8 lock or unlock the ratchet 16 at the same time.

The handle 11 includes a sleeve 21 , a handle shaft 22 , a baffle 23 and a countersunk head screw 14 . The handle shaft 22 is fixed at a place away from the center of the unlocking plate 12 , and the sleeve 21 is sleeved on the handle shaft 22 and passes through the baffle 23 and the countersunk head screw 14 to fix the sleeve 21 on the handle shaft 22 . The handle 11 is fixed on the unlocking plate 12 by means of threads, and the operator drives the unlocking plate 12 to rotate by rotating the handle 11 .

Two needle roller bearings b 18 are installed inside the road wheel 4 through the retaining ring d 20, separated by the shaft sleeve a 3 in the middle of the two needle roller bearings b 18, and fixed on the central shaft 1 by the retaining ring a 2, so that Arrangement to realize the free rotation of the road wheel around the central axis 1; the retaining ring mainly positions the bearing to avoid the non-rotational displacement of the unlocking plate, the lifting wheel and the central axis.

A fixing hole for the wire rope 19 is left on the road wheel 4 , which facilitates the fixing of the wire rope 19 .

The ratchet wheel 16 and the central shaft 1 are connected by a key 24. Between the ratchet wheel 16 and a needle bearing b 18 arranged near the ratchet wheel 16, there is a shaft sleeve c 17 that restricts the movement of the ratchet wheel 16. The two ends of the shaft sleeve c 17 are respectively In contact with the end face of the ratchet wheel 16 and the needle bearing b 18 arranged near the ratchet wheel, the movement of the ratchet wheel 16 is effectively restricted.

Inside the unlocking plate 12, there is a needle roller bearing a 13 that cooperates with the central shaft 1, and the needle roller bearing a 13 is fixed inside the unlocking plate 12 by the retaining ring b 9, and the retaining ring c 10 fixes the needle roller bearing a 13 and the The unlocking disc is limited on the central axis 1.

The cross section of the connecting end of the central axis 1 of the rope slow-release device 31 and the detector 26 is square, and the interface part 33 of the detector 26 is matched with the connecting end of the central axis 1; the function of quick installation can be realized at any interface meeting the size ; There are clamping balls on the four surfaces of the end of the connecting end to strengthen the tightness of the connection; the part connected with the detector is square, and the central shaft 1 does not rotate during use.

The unlocking plate 12 is symmetrically provided with two arc-shaped holes 32 , and correspondingly, two hoisting shafts 25 are arranged on the road wheel 4 , which ensures that the unlocking plate drives the road wheel 4 to rotate smoothly.

The working principle of the device of the present application includes:

Turning the handle 11 in the forward direction drives the unlocking plate 12 to rotate around the central axis 1, the unlocking plate 12 rotates and drives the unlocking block 15 to rotate, and the front end of the unlocking block 15 is in contact with the tail end of the pawl 8. At this time, the pawl 8 is equivalent to a pawl. The fixed shaft 5 is a lever with a fulcrum. Under the action of the lever force, the front end of the pawl 8 is separated from the ratchet wheel 16. A tool bag (heavy object) is hung on the wire rope 19 wound by the road wheel 4, and the road wheel 4 always bears the rotating circumferential force Function; after the pawl 8 and the ratchet wheel 16 are unlocked, the pawl 8 and the road wheel 4 rotate together to complete the release of the rope; after releasing a short distance, the rear end of the pawl 8 and the front end of the unlocking block 15 are separated, The pawl 8 is again clamped on the ratchet wheel 16 under the action of the torsion force of the torsion spring 7, and the rotation release of the road wheel 4 is stopped; by driving the rotation of the unlocking plate 12, the rope release work is continuously completed, and the rope release work is always controlled. To achieve the controllability of rope release within a certain range;

The handle 11 is driven in the reverse direction, the unlocking plate 12 is rotated in the reverse direction, and the hole wall of the arc hole on the unlocking plate 12 is in contact with the lifting shaft 25; the lifting shaft 25 is connected with the road wheel 4 through a nut; the unlocking plate 12 is lifted by lifting The shaft 25 transmits the rotational force to the road wheel 4, so that the road wheel 4 rotates in the opposite direction and winds the wire rope 19 in the wire groove to complete the lifting of the heavy object.

During the lifting process of the heavy object, the pawl 8 and the ratchet wheel 16 will not be locked. When the lifting work is completed, the pawl 8 will be clamped on the ratchet wheel 16 under the action of the torsion spring 7 to complete the locking work.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. A kit transfer rope sustained release device, characterized in that: including center pin (1), bogie wheel (4), ratchet (16), unblock dish (12), unblock piece (15), pawl (8), lifting shaft (25) and handle (11), the one end of center pin (1) is installed on detector (26), bogie wheel (4), ratchet (16) and unblock dish (12) install in proper order on center pin (1) from inside to outside, unblock piece (15) fix on unblock dish (12), pawl (8) install on bogie wheel (4) through pawl fixed axle (5), install torsional spring (7) on pawl fixed axle (5), twine wire rope (19) on bogie wheel (4), hang instrument package (30) on wire rope (19), handle (11) install on unblock dish (12), seted up arc hole (32) on unblock dish (12), fixed axle (25) on bogie wheel (4), the hoisting shaft (25) penetrates into the arc-shaped hole (32);

the handle (11) is rotated in the positive direction to drive the unlocking disc (12) to rotate around the central shaft (1), the unlocking disc (12) rotates to drive the unlocking block (15) to rotate, the front end of the unlocking block (15) is abutted against the tail end of the pawl (8) to enable the front end of the pawl (8) to be separated from the ratchet wheel (16), the unlocking block (15) drives the pawl (8) and the bogie wheel (4) to rotate together to release the steel wire rope, the pawl (8) is clamped on the ratchet wheel (16) again due to the return action of the torsion spring (7) after the short distance is released, the rotation of the bogie wheel (4) is released to stop, and the unlocking disc (12) is continuously driven to complete the controllable release of the steel wire rope;

the handle (11) is driven reversely, the unlocking disc (12) rotates reversely, the loading wheel (4) is driven to rotate reversely through the hoisting shaft (25), and the steel wire rope is collected.

2. The kit transfer cord release device of claim 1, wherein: the unlocking block (15) is provided with two arc-shaped blocks, the arc-shaped blocks are symmetrically arranged on the unlocking disc (12), correspondingly, the two pawls (8) are arranged, and the two pawls (8) lock or unlock the ratchet wheel (16) simultaneously.

3. A kit transfer cable relief device according to claim 1, wherein: the handle (11) comprises a sleeve (21), a handle shaft (22), a blocking piece (23) and a sunk screw (14), the handle shaft (22) is fixed at the position, far away from the center, of the unlocking disc (12), the sleeve (21) is sleeved on the handle shaft (22), and the sleeve (21) is fixed on the handle shaft (22) through the blocking piece (23) and the sunk screw (14).

4. A kit transfer cable relief device according to claim 1, wherein: the free end of the steel wire rope which bypasses the bogie wheel (4) passes through a fixed pulley block (27) and then is fixedly connected with a tool kit (30), the fixed pulley block (27) is installed on a first fixed pulley frame (28) and a second fixed pulley frame (29), and the first fixed pulley frame (28) and the second fixed pulley frame (29) are installed on a detector (26).

5. A kit transfer cable relief device according to claim 1, wherein: two needle roller bearings b (18) are mounted inside the bogie wheel (4) through a retainer d (20), are separated by a sleeve a (3) in the middle of the two needle roller bearings b (18), and are fixed on the central shaft (1) through a retainer a (2).

6. A kit transfer cable relief device according to claim 1, wherein: a fixing hole of a steel wire rope (19) is reserved on the bogie wheel (4).

7. The kit transfer cord release of claim 5, wherein: the ratchet wheel (16) is connected with the central shaft (1) through a key (24), and a shaft sleeve c (17) for limiting the movement of the ratchet wheel (16) is arranged between the ratchet wheel (16) and a needle bearing b (18) arranged close to the ratchet wheel (16).

8. A kit transfer cable relief device according to claim 1, wherein: a needle bearing a (13) matched with the central shaft (1) is arranged in the unlocking disc (12), the needle bearing a (13) is fixed in the unlocking disc (12) through a retaining ring b (9), and the needle bearing a (13) and the unlocking disc are limited on the central shaft (1) through a retaining ring c (10).

9. A kit transfer cord release device according to any one of claims 1-8, wherein: the cross section of the connecting end of the central shaft (1) and the detector (26) is square, and clamping balls are arranged on four surfaces of the end part.

10. The kit transfer cord release device of claim 9, wherein: two arc-shaped holes (32) are symmetrically arranged on the unlocking disc (12), and correspondingly, two hoisting shafts (25) are arranged on the bogie wheel (4).

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