Process trolley

Abstract

The utility model discloses a process trolley, and particularly relates to the technical field of conveying machinery, which comprises a base, a support component and a locking component, the walking wheel assembly is installed on the base, and the supporting assembly is installed on the base. The locking assembly comprises a bolt sleeve, a bolt, an operation handle, a reset spring and a locking plate. The bolt sleeve is installed on the base in a penetrating mode, the bolt is installed in the bolt sleeve in a sliding mode, the operating handle is installed at the upper end of the bolt, the reset spring is arranged in the middle of the bolt in a sleeving mode, one end of the reset spring is installed on the bolt, the other end of the reset spring is installed on the bolt sleeve, the locking plate is installed on the base, and a locking groove is formed in the locking plate. When the operating handle is pressed into the locking groove, the bolt is inserted into the insertion hole of the conveying chain, so that the trolley is fixed on the conveying chain or moves in position, the distance between the front process trolley and the rear process trolley is adjusted, a proper supporting point can be found regardless of vehicle types and vehicle frames, and conveying of the vehicle frames of different vehicle types and front and rear axles is adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying machinery, in particular to a process trolley. Background Art

[0002] As a flexible means of transportation, process trolleys are currently widely used in automated assembly lines in the automotive, electronics, pharmaceutical, food and other industries to achieve continuous transportation of materials between workstations. The process trolley carries different workpieces or equipment according to production needs and runs on the conveyor track. The conveyor track is equipped with a conveyor chain, and the chain links of the conveyor chain are connected by jacks to ensure the stability and balance of the process trolley during operation and avoid overturning or jumping. With the improvement of the level of automation, vertical curved tracks are usually used in the transportation process of the process trolley to change the running direction of the process trolley, so that it moves in the vertical direction, realize the material transmission between the upper and lower layers or the material stacking at a specific location, and the automatic return of the process trolley.

[0003] In the transportation process of heavy machinery such as trucks, large trucks, tractors, harvesters, construction machinery, etc., due to the wide variety of vehicle models, the frame lengths and the distances between the front and rear axles of different models are also different. In order to meet the support needs of different models, it is necessary to prepare a variety of support equipment of different specifications and types. This not only increases the difficulty of design and production, but also increases the cost of equipment accordingly, resulting in an increase in the scale and complexity of the production line, while also increasing the difficulty of inventory and management. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model discloses a process trolley, which can adapt to the transportation of frames and front and rear axles of different vehicle models by adjusting the distance between the front and rear process trolleys.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A process trolley is arranged on a track, in which a conveying chain is movably connected, and the process trolley comprises a base and a locking assembly; the locking assembly comprises a latch sleeve, a latch, an operating handle, a reset spring and a locking plate; the latch sleeve is installed on the base, the latch is slidably installed in the latch sleeve, the operating handle is installed on the latch, the reset spring is sleeved on the middle part of the latch, one end of the reset spring is installed on the latch, and the other end of the reset spring is installed on the latch sleeve, the locking plate is installed on the base, and a locking groove is provided on the locking plate; when the operating handle is located in the locking groove, the latch is inserted into the socket of the conveying chain.

[0007] Furthermore, a retaining ring is installed on the latch pin, the outer wall of the retaining ring is slidably matched with the inner wall of the latch pin sleeve, and one end of the reset spring is installed on the retaining ring.

[0008] Furthermore, the base includes bracket one, bracket two and bracket three, bracket one and bracket two are parallel to each other, one end of bracket three is vertically connected to the middle part of bracket one, and the other end of bracket three is vertically connected to the middle part of bracket two; the latch sleeve is installed in the middle part of bracket three, and the locking plate is installed on one side of the middle part of bracket three.

[0009] Furthermore, a walking wheel assembly is installed on the base, and the walking wheel assembly includes a walking wheel and a walking wheel axle. A bearing is installed in the walking wheel. There are four groups of walking wheel assemblies. Each group of walking wheel axles passes through each group of bearings and is respectively installed on the outer sides of both ends of the bracket one and the outer sides of both ends of the bracket two. A guard is installed on the side of the walking wheel close to the base.

[0010] Furthermore, the process trolley also includes end protection covers, and the number of the end protection covers is four groups. The four groups of end protection covers are respectively installed on the outer sides of both ends of the bracket one and the outer sides of both ends of the bracket two, and the four groups of end protection covers correspond one by one to the four groups of walking wheels.

[0011] Furthermore, the process trolley also includes a middle protective cover assembly, which includes a protective cover and a protective bracket. The number of the middle protective cover assemblies is two groups. The two groups of protective covers are respectively installed on the middle outer side of the bracket one and the middle outer side of the bracket two. The two sides of each group of the protective covers extend outward respectively to form four groups of extension parts. The four groups of extension parts correspond one by one to the four groups of walking wheels, and the two sides of each group of the protective brackets are respectively connected to the extension parts on both sides of each group of the protective covers.

[0012] Furthermore, the middle protective cover assembly also includes a lifting plate and a plurality of guide pins, the lifting plate is located between the protective cover and the protective bracket, a plurality of vertical waist-shaped holes parallel to each other are provided on the lifting plate, the number of the guide pins and the vertical waist-shaped holes are the same and correspond one to one, the guide pins pass through the vertical waist-shaped holes, and the two ends of the guide pins are respectively vertically connected to the protective cover and the protective bracket.

[0013] Furthermore, buffer blocks are installed at both ends of the bracket one and the bracket two respectively.

[0014] Furthermore, the process trolley also includes a support assembly, which includes a bracket four, a bracket five and a bracket six, the bracket four and the bracket five are parallel to each other, the bracket four is installed on the bracket one, the bracket five is installed on the bracket two, the bracket six is ​​installed on the top of the bracket four and the bracket five, and a support block is installed on the bracket six.

[0015] Furthermore, reinforcing rib one is installed between the bracket one and the bracket four, and between the bracket two and the bracket five, respectively; reinforcing rib two is installed between the bracket six and the bracket four, and between the bracket six and the bracket five, respectively.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) An operating handle is installed on the latch, and the operating handle drives the latch to move up and down in the latch sleeve. When the operating handle is locked in the locking groove, the lower end of the latch is inserted into the socket of the conveyor chain. At this time, the position of the process trolley on the conveyor track is locked. When the position of the process trolley needs to be moved, the operating handle is slid out of the locking groove. At this time, the latch automatically pops out under the action of the reset spring. The process trolley can be manually pushed to the predetermined position and then locked again. In this way, the distance between the front and rear process trolleys can be adjusted. Regardless of the size of the vehicle model and the length of the frame, the appropriate support position can be found by adjusting the distance between the front and rear process trolleys. It can adapt to the frames of different vehicle models and the transportation of front and rear axles. There is no need to equip a variety of support equipment of different specifications, thereby reducing equipment costs and inventory management difficulties.

[0018] (2) Add end protection covers at the ends of the four sets of running wheels, and add a middle protection cover assembly between the front and rear sets of running wheels. On the one hand, it protects the running wheels, and on the other hand, it ensures that the process trolley does not cause harm to the operator during the running process. A lifting plate is used in the middle protection cover assembly. When the process trolley reaches the vertical curved track, the vertical waist-shaped hole on the lifting plate will move upward along the guide pin axis under the action of centripetal force or centrifugal force, thereby driving the lifting plate to move up, avoiding collision or friction between the middle protection cover assembly and the vertical curved track. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 1 is a top view of the process trolley in the embodiment.

[0020] Figure 2 It is a left view of the process trolley in the embodiment.

[0021] Figure 3 It is the front view of the process trolley in the embodiment.

[0022] In the figure: 1. base; 11. bracket one; 12. bracket two; 13. bracket three; 14. buffer block; 15. walking wheel assembly; 151. walking wheel; 152. walking wheel shaft; 153. bearing; 154. retaining edge; 2. end protective cover; 3. middle protective cover assembly; 31. protective cover; 311. extension; 32. protective bracket; 33. lifting plate; 331. vertical waist hole; 34. guide pin shaft; 4. support assembly; 41. bracket four; 42. bracket five; 43. bracket six; 431. support bracket; 44. reinforcing rib one; 45. reinforcing rib two; 5. locking assembly; 51. latch sleeve; 52. latch; 521. retaining ring; 53. operating handle; 54. reset spring; 55. locking plate; 551. locking groove; 6. socket. DETAILED DESCRIPTION

[0023] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0024] In order to make the purpose, technical scheme and advantages of the utility model clearer, the device proposed in the utility model is further described in detail below in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.

[0025] Example:

[0026] A craft car, such as Figure 1-Figure 3 As shown, it includes a base 1, an end protective cover 2, a middle protective cover assembly 3, a supporting assembly 4 and a locking assembly 5.

[0027] like Figure 1As shown, the base 1 includes a bracket 11, a bracket 2 12 and a bracket 3 13. The bracket 11, the bracket 2 12 and the bracket 3 13 are all rectangular tubes. The bracket 11 and the bracket 2 12 are parallel to each other. One end of the bracket 3 13 is vertically welded to the middle of the bracket 11, and the other end of the bracket 3 13 is vertically welded to the middle of the bracket 2 12. Buffer blocks 14 are installed at both ends of the bracket 11 and the bracket 2 12 to avoid damage caused by collision of the front and rear process carts in an emergency. Travel wheel assemblies 15 are installed on the outer sides of both ends of the bracket 11 and the bracket 2 12.

[0028] like Figure 1 As shown, there are four sets of running wheel assemblies 15, and each of the four sets of running wheel assemblies 15 includes a running wheel 151 and a running wheel axle 152. Figure 2 As shown, two sets of bearings 153 are installed in the running wheel 151, and the running wheel shaft 152 passes through the bearings 153 and is installed on the outer sides of the two ends of the bracket 11 and the bracket 2 12 respectively. The two sets of bearings 153 are used to bear axial and radial loads, provide precise guidance for the rotation of the running wheel 151, and ensure the stability and accuracy of the rotation of the running wheel 151. Figure 1 As shown, a side guard 154 is installed on the side of the running wheel 151 close to the base 1. The design of the guard 154 can increase the carrying capacity and stability of the running wheel 151 on the one hand, and can generate lateral force when the running wheel 151 rolls on the other hand, so that the running wheel 151 rolls forward along the track under the action of the lateral force, playing a guiding role. In order to ensure that the process trolley can run smoothly and smoothly on the vertical curved track and avoid jamming, the diameter of the running wheel 151 and the installation distance between the four sets of running wheels 151 are matched with the radius of the vertical curved track.

[0029] like Figure 1 As shown, there are four groups of end protection covers 2, which are respectively installed on the outer sides of both ends of bracket 11 and bracket 2 12. The four groups of end protection covers 2 correspond one by one to the four groups of running wheels 151, and are used to protect the outer edges of the ends of the four groups of running wheels 151 relative to the process trolley.

[0030] like Figure 1As shown, there are two groups of middle protective cover assemblies 3. Both groups of middle protective cover assemblies 3 include protective covers 31, protective brackets 32, lifting plates 33 and two guide pins 34. The two groups of protective covers 31 are respectively installed on the middle outer side of bracket one 11 and the middle outer side of bracket two 12. The two sides of each group of protective covers 31 extend outwards respectively to form four groups of extensions 311. The four groups of extensions 311 correspond to the four groups of running wheels 151 one by one and are used to protect the four groups of running wheels 151 relative to the middle outer edge of the process trolley. The two sides of each group of protective brackets 32 are respectively welded to the two side extensions 311 of each group of protective covers 31, which can provide additional support and enhance the stability of the two side extensions 311. The lifting plate 33 is located between the protective cover 31 and the protective bracket 32. Figure 2 As shown, two parallel vertical waist-shaped holes 331 are provided on the lifting plate 33, and two guide pins 34 correspond to the two vertical waist-shaped holes 331 one by one. The guide pins 34 pass through the vertical waist-shaped holes 331, and the two ends of the guide pins 34 are respectively vertically threadedly connected to the protective cover 31 and the protective bracket 32.

[0031] like Figure 3 As shown, the support assembly 4 includes a bracket 41, a bracket 542 and a bracket 643. The bracket 41, the bracket 542 and the bracket 643 are all rectangular tubes. The bracket 41 and the bracket 542 are parallel to each other. The bracket 41 is threadedly connected to the upper middle part of the bracket 11, and a reinforcing rib 144 is threadedly connected between the two. The bracket 542 is threadedly connected to the upper middle part of the bracket 212, and a reinforcing rib 144 is also threadedly connected between the two. The support assembly 4 and the base 1 are threadedly connected to facilitate the disassembly and replacement of the support assembly 4. The bracket 643 is welded to the top of the bracket 41 and the bracket 542, and a reinforcing rib 245 is welded between the bracket 643 and the bracket 41, and between the bracket 643 and the bracket 542. The reinforcing rib 144 and the reinforcing rib 245 are arranged at the main force-bearing position, which can improve the strength and rigidity of the main force-bearing position, thereby improving the overall stability of the process trolley. A support bracket 431 is installed on the bracket 6 43. The support bracket 431 is made of polyurethane, which is light and wear-resistant, and has a high hardness and can withstand heavier workpieces.

[0032] like Figure 3As shown, the locking assembly 5 includes a latch sleeve 51, a latch 52, an operating handle 53, a reset spring 54 and a locking plate 55. The latch sleeve 51 is installed in the middle of the bracket 3 13, the latch 52 is located in the latch sleeve 51 and the upper and lower ends of the latch 52 are exposed, the operating handle 53 is vertically installed at the upper end of the latch 52, and the lower end of the latch 52 matches the socket 6 of the conveying chain. A retaining ring 521 is installed in the middle of the latch 52 located in the latch sleeve 51, and the outer wall of the retaining ring 521 is slidably matched with the inner wall of the latch sleeve 51, so that the latch 52 is slidably installed in the latch sleeve 51. The reset spring 54 is sleeved in the middle of the latch 52, the upper end of the reset spring 54 is installed on the retaining ring 521, and the lower end of the reset spring 54 is installed on the latch sleeve 51. The locking plate 55 is installed on the outer side of the middle part of the bracket three 13. The position of the locking plate 55 corresponds to the position of the operating handle 53. The locking plate 55 is provided with a locking groove 551 for locking the operating handle 53.

[0033] Specific operation process:

[0034] After the process trolley is assembled, the specific position of the process trolley on the ground track is predetermined according to the size and length of the workpiece to be transported, and sufficient clearance is left between the front and rear process trolleys.

[0035] Place the process trolley at a predetermined position on the ground track, and press down the operating handle 53. At this time, the latch 52 moves downward along the latch sleeve 51 under the action of the operating handle 53, driving the retaining ring 521 on the latch 52 to move downward and compress the reset spring 54, and the lower end of the latch 52 is inserted into the insertion hole 6 of the conveyor chain. Press the operating handle 53 into the locking groove 551, and the latch 52 is locked in the insertion hole 6 of the conveyor chain, which provides power for the operation of the process trolley on the one hand, and ensures that the latch 52 will not be separated from the conveyor chain due to the operation of the worker during the movement of the process trolley on the other hand.

[0036] The conveyor chain pushes the process trolley to move on the ground track. When the process trolley runs to the front end of the conveyor line, the operator lifts the workpiece or equipment away, and the empty process trolley enters the front vertical curved track under the traction of the conveyor chain, and enters the lower track along the front vertical curved track. When passing through the front vertical curved track, due to the downward movement, the bending of the front vertical curved track will generate a centrifugal force on the process trolley. Under the action of the centrifugal force, the lifting plate 33 moves upward under the guidance of the guide pin shaft 34 to avoid collision and friction with the front vertical curved track.

[0037] The conveyor chain pushes the process trolley to move on the lower track, enter the rear vertical curved track, and return to the ground track along the rear vertical curved track. When passing through the rear vertical curved track, the bending of the rear vertical curved track will generate a centripetal force on the process trolley due to the upward movement. Under the action of the centripetal force, the lifting plate 33 moves upward under the guidance of the guide pin shaft 34 to avoid collision and friction with the rear vertical curved track.

[0038] After the process trolley returns to the ground track, it will carry the workpiece again for the next round of transmission.

[0039] When the position of the process trolley needs to be changed according to the size and length of the workpiece to be transported, the operating handle 53 is slid downward out of the locking groove 551, and the latch 52 is automatically popped out under the action of the reset spring 54, releasing the lock between the process trolley and the socket 6 of the conveyor chain. The process trolley is manually pushed, and the latch 52 is inserted into the socket 6 of the conveyor chain again after it is in place, and the workpiece can be carried for transportation. Regardless of the size of the vehicle and the length of the frame, the appropriate support position can be found by adjusting the distance between the front and rear process trolleys, which can adapt to the transportation of different vehicle frames and front and rear axles.

[0040] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A process trolley arranged on a track, wherein a conveying chain is movably connected in the track, characterized in that: The invention comprises a base (1) and a locking assembly (5); the locking assembly (5) comprises a latch sleeve (51), a latch pin (52), an operating handle (53), a reset spring (54) and a locking plate (55); the latch sleeve (51) is mounted on the base (1), the latch pin (52) is slidably mounted in the latch sleeve (51), the operating handle (53) is mounted on the latch pin (52), the reset spring (54) is sleeved on the middle part of the latch pin (52), one end of the reset spring (54) is mounted on the latch pin (52), the other end of the reset spring (54) is mounted on the latch sleeve (51), the locking plate (55) is mounted on the base (1), and a locking groove (551) is provided on the locking plate (55); when the operating handle (53) is located in the locking groove (551), the latch pin (52) is inserted into the insertion hole (6) of the conveying chain.

2. A process vehicle according to claim 1, characterized in that: A retaining ring (521) is installed on the latch pin (52), the outer wall of the retaining ring (521) is slidably matched with the inner wall of the latch pin sleeve (51), and one end of the return spring (54) is installed on the retaining ring (521).

3. A process vehicle according to claim 1, characterized in that: The base (1) comprises a bracket one (11), a bracket two (12) and a bracket three (13); the bracket one (11) and the bracket two (12) are parallel to each other; one end of the bracket three (13) is vertically connected to the middle of the bracket one (11); the other end of the bracket three (13) is vertically connected to the middle of the bracket two (12); the latch sleeve (51) is installed in the middle of the bracket three (13); and the locking plate (55) is installed on one side of the middle of the bracket three (13).

4. A process vehicle according to claim 3, characterized in that: A walking wheel assembly (15) is mounted on the base (1), the walking wheel assembly (15) comprising a walking wheel (151) and a walking wheel axle (152), a bearing (153) being mounted in the walking wheel (151), the walking wheel assemblies (155) being in four groups, each group of walking wheel axles (152) passing through each group of bearings (153) and then being mounted on the outer sides of both ends of the bracket one (11) and the outer sides of both ends of the bracket two (12), and a retaining edge (154) is mounted on one side of the walking wheel (151) close to the base (1).

5. A process vehicle according to claim 4, characterized in that: It also includes end protection covers (2), the number of the end protection covers (2) being four groups, the four groups of the end protection covers (2) being respectively mounted on the outer sides of both ends of the bracket one (11) and the outer sides of both ends of the bracket two (12), and the four groups of the end protection covers (2) corresponding one to one with the four groups of the walking wheels (151).

6. A process vehicle according to claim 5, characterized in that: The invention also comprises a middle protective cover assembly (3), wherein the middle protective cover assembly (3) comprises a protective cover (31) and a protective bracket (32), wherein the number of the middle protective cover assembly (3) is two groups, and the two groups of the protective covers (31) are respectively mounted on the middle outer side of the bracket one (11) and the middle outer side of the bracket two (12), and the two sides of each group of the protective covers (31) respectively extend outwards to form four groups of extension parts (311), and the four groups of extension parts (311) correspond to the four groups of walking wheels (151) one by one, and the two sides of each group of the protective bracket (32) are respectively connected to the two sides of the extension parts (311) of each group of the protective covers (31).

7. A process vehicle according to claim 6, characterized in that: The middle protective cover assembly (3) also includes a lifting plate (33) and a plurality of guide pins (34). The lifting plate (33) is located between the protective cover (31) and the protective bracket (32). The lifting plate (33) is provided with a plurality of mutually parallel vertical waist-shaped holes (331). The number of the guide pins (34) and the vertical waist-shaped holes (331) are the same and correspond one to one. The guide pins (34) pass through the vertical waist-shaped holes (331). The two ends of the guide pins (34) are respectively vertically connected to the protective cover (31) and the protective bracket (32).

8. A process vehicle according to claim 3, characterized in that: Buffer blocks (14) are respectively installed at both ends of the bracket one (11) and the bracket two (12).

9. A process vehicle according to claim 3, characterized in that: The invention also comprises a support assembly (4), wherein the support assembly (4) comprises a bracket four (41), a bracket five (42) and a bracket six (43), wherein the bracket four (41) and the bracket five (42) are parallel to each other, the bracket four (41) is mounted on the bracket one (11), the bracket five (42) is mounted on the bracket two (12), the bracket six (43) is mounted on the top of the bracket four (41) and the bracket five (42), and a support bracket (431) is mounted on the bracket six (43).

10. A process vehicle according to claim 9, characterized in that: A reinforcing rib one (44) is installed between the bracket one (11) and the bracket four (41), and between the bracket two (12) and the bracket five (42), respectively; a reinforcing rib two (45) is installed between the bracket six (43) and the bracket four (41), and between the bracket six (43) and the bracket five (42), respectively.

Images